Add sticky footer tricky as a mixin.

Refs #290
Adjust layout according to sticky footer.

Refs #290
Fix sticky footer for IE6

Refs #290
Adjust logo right padding

So the header can fit in one row in smaller screen.

Refs #290
Replace footer after trick with sticky footer trick

Refs #290
Merge pull request #315 from doitian/bug/290-footer-after-breaks-old-android-browsers

Bug/290 footer after breaks old android browsers