Updated mediawiki/skins
Project: mediawiki/skins/Modern  817e2b0ce5f6deb48186446be108e0354fa38ac3

Import Modern skin from MediaWiki core

Removed from MediaWiki in I65768b4c29faf468.
Changes:
- Moved images into their own directory and
  updated references in main.css.

Change-Id: I5348fedddf14affcee2688833f4e759e5af6499c
Updated mediawiki/skins
Project: mediawiki/skins/CologneBlue  eccb91f91b24a8237ce1271b94ff24364d48faa9

Import CologneBlue skin from MediaWiki core

Removed from MediaWiki in I65768b4c29faf468.

Change-Id: I9cc051f48074a033c684e5efa56a7b4dde51d366