Mangos Three v0.21 Make Mangos Three compatible with newer MySQL. Based by work by @leprasmurf

Mangos Three Server and Database built by appveyor. Commit: 6971c36

Mangos Three v0.21 Disable OSX build checking until we have an OSX dev to get them fixed

Mangos Three Server and Database built by appveyor. Commit: 2d57ca9

Mangos Three v0.21 Updated Readme - Changed Appveyor to test the correct branch

Mangos Three Server and Database built by appveyor. Commit: 0eeb067

Mangos Three v0.21 Updated Readme - Changed Appveyor to test the correct branch

Mangos Three Server and Database built by appveyor. Commit: 0eeb067