fixes for beautifulsoup4 4.4.0

* Explicitly specify the lxml parser to suppress warnings;

* Supposedly fix the

      AttributeError: 'NoneType' object has no attribute 'next_element'

  issue [1] with BeautifulSoup when finding elements after extracting
  certain tags. I bet I've encountered that error before, but it seemed
  to went away somehow. Not this time. Without digging into to much
  detail (don't have time to file a bug or anything), this fix --
  precompile a list of tags to extract, and only extract after done with
  other processing -- seem to work.

* Add .nojekyll to root of build
  dir (https://help.github.com/articles/files-that-start-with-an-underscore-are-missing/).

[1]: Full traceback:

    ---------------------------------------------------------------------------
    AttributeError                            Traceback (most recent call last)
    <ipython-input-7-9d3d20b34e0c> in <module>()
    ----> 1 a.footer

    /Users/zmwang/.pyenv/versions/3.4.3/lib/python3.4/site-packages/beautifulsoup4-4.4.0-py3.4.egg/bs4/element.py in __getattr__(self, tag)
        995         # We special case contents to avoid recursion.
        996         elif not tag.startswith("__") and not tag=="contents":
    --> 997             return self.find(tag)
        998         raise AttributeError(
        999             "'%s' object has no attribute '%s'" % (self.__class__, tag))

    /Users/zmwang/.pyenv/versions/3.4.3/lib/python3.4/site-packages/beautifulsoup4-4.4.0-py3.4.egg/bs4/element.py in find(self, name, attrs, recursive, text, **kwargs)
       1232         criteria."""
       1233         r = None
    -> 1234         l = self.find_all(name, attrs, recursive, text, 1, **kwargs)
       1235         if l:
       1236             r = l[0]

    /Users/zmwang/.pyenv/versions/3.4.3/lib/python3.4/site-packages/beautifulsoup4-4.4.0-py3.4.egg/bs4/element.py in find_all(self, name, attrs, recursive, text, limit, **kwargs)
       1253         if not recursive:
       1254             generator = self.children
    -> 1255         return self._find_all(name, attrs, text, limit, generator, **kwargs)
       1256     findAll = find_all       # BS3
       1257     findChildren = find_all  # BS2

    /Users/zmwang/.pyenv/versions/3.4.3/lib/python3.4/site-packages/beautifulsoup4-4.4.0-py3.4.egg/bs4/element.py in _find_all(self, name, attrs, text, limit, generator, **kwargs)
        527         while True:
        528             try:
    --> 529                 i = next(generator)
        530             except StopIteration:
        531                 break

    /Users/zmwang/.pyenv/versions/3.4.3/lib/python3.4/site-packages/beautifulsoup4-4.4.0-py3.4.egg/bs4/element.py in descendants(self)
       1271         while current is not stopNode:
       1272             yield current
    -> 1273             current = current.next_element
       1274
       1275     # CSS selector code

    AttributeError: 'NoneType' object has no attribute 'next_element'

1 files changed, 1 insertions, 1 deletions

diff --git a/requirements.txt b/requirements.txt
index 4e0569be..577d17cf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-beautifulsoup4
+beautifulsoup4>=4.4.0
 colorama
 lxml
 python-dateutil