[Core] Updated build defintions. Thanks lfxgroove
[Build] Fixed up compile error
Removed local realmd repo and added universal realmd submodule

This universal repo is based on the original Four realmd
[DB] Fixed Mangos.sql import errors
[Core] REalmdb sync with Zero
[Sync] minor project sync
[Core] Fix tabs
[Tools] Added tools icon to extraction tools
Merge remote-tracking branch 'upstream/Rel19' into Rel19
[Core] Implemented Leave LFG function for Dungeon Finder.