Merge pull request #16 from tavaresb/comment_changes

Allow user to comment changes, it will be passed to the git commit message
Sorting by type ( folders first ) the items
Added keyboard shortcuts help and key 'f' now opens files dropdown
Merge branch 'master' of github.com:LuRsT/Pendium
Removed useless js line, added documentation about markdown extensions
Removed required folder from tests.py
Updated bootstrap to v2.3
First step to PEP8 approved code
Final code cleanup
More PEP8 cleanup
Requirements in monospaced font
Fixed little css bug, removed useless bootstrap.js, now using .min version
Added 'e' shortcut, to edit the file we're viewing
Added config to disable file operations in Pendium, renderning it Read Only by config
Prettify keyboard shortcuts help menu
Create files now with a dropdown list of the extensions, taken from the config
Now with themes to change Pendium's colourscheme
Now with a colapse if directory has a home file
Updated instalation of requirements in README
Little refactor, more tests