python pelican: v3.4.0 -> v3.5.0
python pillow: fix build for py2.6 and pypy
pyjwt: add expression
python future: add expression
python html5lib: v0.95 -> v0.999
python bleach: add expression
python oauthlib: v0.5.0 -> v0.7.2
requests_oauthlib: v0.3.2 -> v0.4.1
filebrowser_safe: add expression
grappelli_safe: add expression
mezzanine: add expression