Removed nonexistent 5.4.1.1 Millennial Media SDK. Updated framework and OS requirements for 5.4.1 based on updated documentation. Updated description for Millennial Media AdMob adapter version 1.5.0. Added version 1.6.0 of Millennial Media AdMob adapter.
Fixed JSON formatting.
Merge pull request #12828 from michaelpatzer/master

Removed nonexistent 5.4.1.1 Millennial Media SDK. Updated framework and ...