moved file transfer template into chat html file
enhanced visual styles for file transfer
relative positionned progress text, text-shadow added
differentiated a received transfer from a sent one
FileTransfer now has an 'incoming' attribute
documented the incoming attribute
Merge pull request #191 from n1k0/enhance-file-transfer-styles

Enhance file transfer styles
a more adaptative layout for the chat window
Remove unnecessary CSS clear property
Remove contradictory (and unused) CSS height property
Removed unused callview element and CSS property
Add XXX comment about more CSS cleanup
Merge pull request #193 from dmose/responsive3

Make popped out chat window handle resize significantly better
fixed local video is now correctly stapled into bottom right corner
siwtched letterbox and pillowbox to white instead of grey
added comment explaining the center alignment trick
Merge pull request #194 from n1k0/stapled-local-video

Local video is now correctly stapled to bottom right corner
split out css files
Removed unused container-fluid class rule
Merge pull request #195 from n1k0/split-css-files

Split css files for easier maintenance, patch by @n1k0, r=@dmose