We have to override SkinTemplate->formatLanguageName() in SkinCologneBlue
not to capitalize the language names, as they are not actually used in the
sidebar and look better this way.
This change revealed that CologneBlue does not set the base font for the
page, causing text marked as being in a different language (e.g., language
links) to be displayed in a different fond in some browsers. Adding
"font-family: serif" to body fixed the issue.
Change-Id: I8b56ccb6f9a2ba47613f135754b5a133a6870412
849beb78ab