Add Visual Studio 2013 files
[3001] Fix build for CMaNGOS 12661
[3002] Implement script support for quests 13284 and 13301

Close #81
[3003] Update Authorship information to the new standard

Thanks to @NeatElves for providing the base patch

Close #100
[3004] Implement script support for quests 13221, 13229, 13481 and 13482.

Part of #27
[3005] Implement script support for quest 12831

Also remove the instant respawn from previous commits

Part of #27
[3006] Implement script support for quest 12082

Part of #27
[3007] Implement script support for quest 11241

Part of #27