Update favicons for new themes

add favicon-chillax.png, rename favicon.png to favicon-soylentnews.png,
remove favicon.ico and set favicon-default.png to be the same as
chillax.
Add new favicons to the THEME file
add favicon link tag to header.

based on template name.
Remove images use css for effects

Change more rounded corners to css instead of images.
Remove background image.
Mirror chillax theme in SN red

Used chillax css as starting point and used #933 and #600 for colors.
bugs in syntax and missing schema change.
Merge pull request #145 from paulej72/master

fix THEME file to have correct name
typo and merge from master
fix issue due to adding a tag styles in theme.css
Merge pull request #144 from paulej72/themes

Themes
Initial implementation dynamic commenting

Signed-off-by: Michael Casadevall <mcasadevall@ubuntu.com>
Merge pull request #147 from NCommander/initial_dynamic_commenting

Initial implementation dynamic commenting