Update newsly/models.py

Setting max_length for NewsPhoto.photo in order to avoid encountering the path error from sqlite not validating path lengths.
Update utils.py

Fixing unicode encoding of name when upload_to gets a function and not a string as argument.
Updated README, started migration to bootstrap templates
Updated templates for bootstrap
Fixed some template bugs
Moved attachments/documents to downloads
Fixed small template bug
Made some template adjustments
Refactored get_latest_news templatetag
Updated french translations
Small fix for tinymce/grappelli
Removed useless template tags loading
Small header fix
Update news_body.inc.html
Rebased from master