Made the allowed filetypes configurable in config.yml. Added an extra check for uploads in the backend as well.
Set a default for 'accept_file_types' in Config.php.
removed some typos in comments
added support for names forms, fixed empty not required file uploads
date and version number
Merge pull request #907 from jadwigo/master

add named forms
Some extra sanitising for filenames of uploaded files. Ref #902
Regenerate session ID when logging in / out

(#905 part 1)
Use POST for user actions, with a CSRF token

Fixes #905
Fixed: .confirm class should work for all types of elements.

Previous selector was too strict, matching only on <a> tags. No reason
to exclude other clickable tags.
Implemented CSRF for contentedit

Fixes #905 (again)
Silly mixup: pages, instead of entries in contenttypes.yml.dist
Added 'twig' filter to parse snippets of twig, straight from twig! Twigception!
Allow 'format' option in relationships, to tweak the output of each line in the select menu. Fixes #913.
Added some clarification to twig output filter.
Merge pull request #910 from rixbeck/master

'Uncaught exception' if theme path can not be reached
Allow sorting on two criteria in 'order()' twig filter. Fixes #912.
Added "notnull => false" to date and date time fields. Fixes #911
Added option to disable Silex' built-in native filebased session handler.
Merge pull request #914 from rixbeck/master

Describing usage of theme_path in config/config.yml.dist