Added drag and drop file uploads
Added confirmation dialog when drag and drop occurs
Chatbox supports drag and drop too now
Don't allow drag and drop if a friend is offline
Fixed a minor bug

Trying to move the tox data file to a non existent directory shouldn't
happen anymore. (this caused an exception before)
Added thumbnails (previews) to downloaded images
Small code cleanup

I have a feeling that this whole 'inline image' thing already needs a
redo.
Indicate whether or not we're connected to the DHT
Added some stuff from the avatar branch

Don't be fooled, avatars don't work yet.
Only change the status indicator if tox.SetUserStatus returns true
Updated .gitignore
This should fix an issue where data not being saved

I'm such a dumbass
Fixed a weird file transfer glitch
Committing progress on avatars (just syncing up)
Avatars implemented (experimental)
Don't request avatar data if we don't need it
Forgot to call tox.SetAvatar on startup
Removed some unneeded code and fixed warnings
Update README.md
Merge remote-tracking branch 'origin/master' into av