Site design refresh part II: icon font

Use slimmed icon font packaged by http://fontello.com/. I only need two
glyphs: RSS and CC. I ended up picking the glyphs from the Entypo v2.0
family (https://github.com/danielbruce/entypo), licensed under SIL. I
actually like the Font Awesome glyphs slightly better, but fontello
currently only supports FA v4.3.0, which doesn't include the circular CC
glyph I need.

Old web fonts are kept for now. They will be removed after a while. See
\#9.

Open Sans is still in place and will be addressed later when the logo is
attacked.

The entire fontello package I downloaded, including the license,  will
be added to this repo as source/fonts/fontello/ later when I have
implemented an exclude list in pyblog to prevent the directory from
being copied to the deployment tree.

6 files changed, 40 insertions, 73 deletions

diff --git a/source/css/fonts.css b/source/css/fonts.css
index e8995384..fbfedc58 100644
--- a/source/css/fonts.css
+++ b/source/css/fonts.css
@@ -1,16 +1,3 @@
-/* droid-sans-mono-regular - latin */
-@font-face {
-  font-family: 'Droid Sans Mono';
-  font-style: normal;
-  font-weight: 400;
-  src: url('../fonts/droid-sans-mono-v7-latin-regular.eot'); /* IE9 Compat Modes */
-  src: local('Droid Sans Mono'), local('DroidSansMono'),
-       url('../fonts/droid-sans-mono-v7-latin-regular.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
-       url('../fonts/droid-sans-mono-v7-latin-regular.woff2') format('woff2'), /* Super Modern Browsers */
-       url('../fonts/droid-sans-mono-v7-latin-regular.woff') format('woff'), /* Modern Browsers */
-       url('../fonts/droid-sans-mono-v7-latin-regular.ttf') format('truetype'), /* Safari, Android, iOS */
-       url('../fonts/droid-sans-mono-v7-latin-regular.svg#DroidSansMono') format('svg'); /* Legacy iOS */
-}
 /* open-sans-regular - latin */
 @font-face {
   font-family: 'Open Sans';
@@ -24,55 +11,14 @@
        url('../fonts/open-sans-v13-latin-regular.ttf') format('truetype'), /* Safari, Android, iOS */
        url('../fonts/open-sans-v13-latin-regular.svg#OpenSans') format('svg'); /* Legacy iOS */
 }
-/* pt-serif-regular - latin */
+/* icon font from fontello */
 @font-face {
-  font-family: 'PT Serif';
+  font-family: 'fontello';
+  src: url('../fonts/fontello.eot');
+  src: url('../fonts/fontello.eot?#iefix') format('embedded-opentype'),
+       url('../fonts/fontello.woff') format('woff'),
+       url('../fonts/fontello.ttf') format('truetype'),
+       url('../fonts/fontello.svg#fontello') format('svg');
+  font-weight: normal;
   font-style: normal;
-  font-weight: 400;
-  src: url('../fonts/pt-serif-v8-latin-regular.eot'); /* IE9 Compat Modes */
-  src: local('PT Serif'), local('PTSerif-Regular'),
-       url('../fonts/pt-serif-v8-latin-regular.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
-       url('../fonts/pt-serif-v8-latin-regular.woff2') format('woff2'), /* Super Modern Browsers */
-       url('../fonts/pt-serif-v8-latin-regular.woff') format('woff'), /* Modern Browsers */
-       url('../fonts/pt-serif-v8-latin-regular.ttf') format('truetype'), /* Safari, Android, iOS */
-       url('../fonts/pt-serif-v8-latin-regular.svg#PTSerif') format('svg'); /* Legacy iOS */
-}
-/* pt-serif-italic - latin */
-@font-face {
-  font-family: 'PT Serif';
-  font-style: italic;
-  font-weight: 400;
-  src: url('../fonts/pt-serif-v8-latin-italic.eot'); /* IE9 Compat Modes */
-  src: local('PT Serif Italic'), local('PTSerif-Italic'),
-       url('../fonts/pt-serif-v8-latin-italic.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
-       url('../fonts/pt-serif-v8-latin-italic.woff2') format('woff2'), /* Super Modern Browsers */
-       url('../fonts/pt-serif-v8-latin-italic.woff') format('woff'), /* Modern Browsers */
-       url('../fonts/pt-serif-v8-latin-italic.ttf') format('truetype'), /* Safari, Android, iOS */
-       url('../fonts/pt-serif-v8-latin-italic.svg#PTSerif') format('svg'); /* Legacy iOS */
-}
-/* pt-serif-700 - latin */
-@font-face {
-  font-family: 'PT Serif';
-  font-style: normal;
-  font-weight: 700;
-  src: url('../fonts/pt-serif-v8-latin-700.eot'); /* IE9 Compat Modes */
-  src: local('PT Serif Bold'), local('PTSerif-Bold'),
-       url('../fonts/pt-serif-v8-latin-700.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
-       url('../fonts/pt-serif-v8-latin-700.woff2') format('woff2'), /* Super Modern Browsers */
-       url('../fonts/pt-serif-v8-latin-700.woff') format('woff'), /* Modern Browsers */
-       url('../fonts/pt-serif-v8-latin-700.ttf') format('truetype'), /* Safari, Android, iOS */
-       url('../fonts/pt-serif-v8-latin-700.svg#PTSerif') format('svg'); /* Legacy iOS */
-}
-/* pt-serif-700italic - latin */
-@font-face {
-  font-family: 'PT Serif';
-  font-style: italic;
-  font-weight: 700;
-  src: url('../fonts/pt-serif-v8-latin-700italic.eot'); /* IE9 Compat Modes */
-  src: local('PT Serif Bold Italic'), local('PTSerif-BoldItalic'),
-       url('../fonts/pt-serif-v8-latin-700italic.eot?#iefix') format('embedded-opentype'), /* IE6-IE8 */
-       url('../fonts/pt-serif-v8-latin-700italic.woff2') format('woff2'), /* Super Modern Browsers */
-       url('../fonts/pt-serif-v8-latin-700italic.woff') format('woff'), /* Modern Browsers */
-       url('../fonts/pt-serif-v8-latin-700italic.ttf') format('truetype'), /* Safari, Android, iOS */
-       url('../fonts/pt-serif-v8-latin-700italic.svg#PTSerif') format('svg'); /* Legacy iOS */
 }
diff --git a/source/css/theme.css b/source/css/theme.css
index 83ceacb2..5909f7ab 100644
--- a/source/css/theme.css
+++ b/source/css/theme.css
@@ -226,27 +226,35 @@ noscript a {
 }
 
 .rss-icon, .atom-icon, .cc-icon {
-    position: relative;
     text-decoration: none;
 }
 
 .rss-icon, .atom-icon {
-    font-size: 16px;
-    margin: 0 2px;
-    top: 1px;
-}
-
-/* fix problematic baseline shift in Firefox */
-@-moz-document url-prefix() {
-    .rss-icon {
-        top: 0;
-    }
+    margin: 0 3px;
 }
 
 .cc-icon {
     margin: 0 1px;
 }
 
+.rss-icon:before, .atom-icon:before {
+    content: "\e800";
+    font-family: fontello;
+    font-size: 105%;
+}
+
+.rss-icon:before {
+    display: inline-block;
+    transform: scale(-1,1);
+    -webkit-transform: scale(-1,1);
+}
+
+.cc-icon:before {
+    content: "\e801";
+    font-family: fontello;
+    font-size: 95%;
+}
+
 /* blog index */
 
 .blog-index-year-title {
diff --git a/source/fonts/fontello.eot b/source/fonts/fontello.eot
new file mode 100644
index 00000000..9f5d486b
--- /dev/null
+++ b/source/fonts/fontello.eot
diff --git a/source/fonts/fontello.svg b/source/fonts/fontello.svg
new file mode 100644
index 00000000..3ce4b9b1
--- /dev/null
+++ b/source/fonts/fontello.svg
@@ -0,0 +1,13 @@
+<?xml version="1.0" standalone="no"?>
+<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
+<svg xmlns="http://www.w3.org/2000/svg">
+<metadata>Copyright (C) 2016 by original authors @ fontello.com</metadata>
+<defs>
+<font id="fontello" horiz-adv-x="1000" >
+<font-face font-family="fontello" font-weight="400" font-stretch="normal" units-per-em="1000" ascent="850" descent="-150" />
+<missing-glyph horiz-adv-x="1000" />
+<glyph glyph-name="rss" unicode="&#xe800;" d="m0 730q314 0 537-223t223-537l-118 0q0 266-188 453t-454 187l0 120z m0-238q218 0 371-153t153-369l-118 0q0 166-119 285t-287 119l0 118z m114-296q46 0 80-33t34-81q0-46-34-79t-80-33-80 33-34 79q0 48 34 81t80 33z" horiz-adv-x="760" />
+<glyph glyph-name="cc" unicode="&#xe801;" d="m474 830q198 2 340-136t146-336q2-200-136-342t-338-146q-198-2-341 137t-145 337q-4 200 135 342t339 144z m12-858q156 2 266 114t108 270-115 267-269 107q-158-2-267-114t-107-270 114-267 270-107z m-124 298q40 0 58 40l56-30q-20-36-50-52-32-20-70-20-62 0-100 38-38 36-38 104t38 106 96 38q86 0 124-66l-62-32q-10 20-24 28t-28 8q-60 0-60-82 0-38 14-58 18-22 46-22z m266 0q42 0 56 40l58-30q-18-32-50-52t-70-20q-64 0-100 38-38 36-38 104 0 64 38 106 38 38 98 38 84 0 120-66l-60-32q-10 20-24 28t-28 8q-62 0-62-82 0-36 16-58t46-22z" horiz-adv-x="960" />
+</font>
+</defs>
+</svg>
\ No newline at end of file
diff --git a/source/fonts/fontello.ttf b/source/fonts/fontello.ttf
new file mode 100644
index 00000000..4b372c14
--- /dev/null
+++ b/source/fonts/fontello.ttf
diff --git a/source/fonts/fontello.woff b/source/fonts/fontello.woff
new file mode 100644
index 00000000..04b7ffcd
--- /dev/null
+++ b/source/fonts/fontello.woff