Background changes

Added new mobile specific background (1000px) and I cropped the main
bg2 to 2000px wide (as it was discussed) and reprocessed them from
source to maintain quality. bg2 is now 104k and bg2_mobile is 53k.
Add icon sprite

Created a sprite with the full sized icons @ 100px wide (in order) and
then at 55px wide (in order) aligned vertically. The separation for the
first 4 is 100px, then it's 55px.
recsync background change.

reduce specific width of background and rename.
Changed icon sprites.

split the small and large icons into separate files.
a colon before href so as https://github.com/wildfly/wildfly wors
Merge pull request #5 from Karm/master

GitHub link http://www.wildfly.org/social/ clickable.

Thanks!
Merge github.com:insectengine/wildfly.org into switch_to_images

Conflicts:
	images/bg2.jpg
Switching to sprites instead of the font
Removing the fonts
Changing the symbols on the homepage...

For consistency, we need to change the symbols on the home page.
Merge pull request #6 from insectengine/master

Changing the symbols on the homepage.
Few layout fixes & added "special thanks"

- added max-width so it still looks ok on screen with more than 2000px resolution
- added favicon
- added special thanks with intellij banner