Async pyVaultPlayerInfoList::AddPlayer

This fixes the stutter when adding a buddy to the KI. The return value was
never used, according to grep. There is a delay between hitting enter and the player being added, but that's acceptable.
Fix crash when loading converted Age.
Merge pull request #347 from Deledrius/fanagecrashworkaround

Workaround crash when linking to converted fan Ages
Merge pull request #346 from Hoikas/async-sleep

Fix buddy-add stutter
Fix a VC++2013 compile error