Don't manipulate msg data
Order msgs by timestamp + remove legacy code
Merge pull request #145 from owncloud/msgs2

Don't manipulate msg data but change view
Add gitattributes to prevent merge conflicts with compiled JS
First steps for sharing files
Add basic sharing
Store attachments in DB
Add msg to conversation to inform about attached file
Solve conflict
Add table with all attachments
Small style fixes
Make it possible to remove/unshare files
Style fixes