Added speed entity effect.
Merge branch 'master' into Effects
Added SetWalkSpeed() to cMonster.
Added slowness effect and added entity support.
Fixed potion removing in creative mode.
Added GetWalkSpeed() and SetWalkSpeed() documentation.
Removed SexyMotd link
Merge branch 'master' into Effects
Renamed SetWalkSpeed() to SetRelativeWalkSpeed()
Merge branch 'master' into Effects
Added extra mushroom handler.
Updated CI Links to new ones.
Gittip is now Gratipay

Also, 7000th Commit!
Merge pull request #1353 from mc-server/Effects

Added speed entity effect.
Entities experience water resistance
Improved cBlockHandler::DropBlock
OSSupport: Fixed UNICODE Windows builds.

The files now compile even inside UNICODE applications.
Added new Qt-based biome visualiser.

Compile with Qt 5.1+