DB/Creature: Vacillating Voidcaller

Script http://www.wowhead.com/npc=19527
Merge branch '3.3.5' of https://github.com/TrinityCore/TrinityCore into ghbb
Update cs_ticket.cpp

Fixing null pointer to player in unassign ticket
DB/Misc: Various Updates

1) Nerub'Ar Victim by DDuarte closes #13621
2) Search for Incendicite by Exodius closes #13309
3) Feeding Arngrim closes #12826
4 ) CPP > DB Conversions (What's Haunting Witch Hill and of Keys and Cages closes #12645
Yes of Keys and Cages again, the previous commit was not most recent version of script
Core: Use the correct function to convert strings to unsigned longs and unsigned long longs

Fixes wrong data being inserted into the database (i.e explored zones).
More info in #13493

Fixes #13493

Thanks to @jackpoz for finding the code issue and @Vavehl for an expectional bug report.

Conflicts:
	src/server/game/Entities/Player/Player.cpp
	src/server/game/Globals/ObjectMgr.cpp
	src/server/scripts/Commands/cs_misc.cpp
	src/server/scripts/Commands/cs_modify.cpp
Merge branch 'master' of https://github.com/TrueWoW/TrinityCore into ghbb
Merge branch '3.3.5' of https://github.com/TrinityCore/TrinityCore into ghbb
DB/Quest: Further Conversations

Update after https://github.com/TrinityCore/TrinityCore/commit/84fdc55db85ac36f6a570d17402572d71412a9d9 as this was failing to give quest credit

* Fix quest credit for this quest was failing due to using target 7, works with 23
* The Erratic sentrys will now despawn when hit by spell rather than letting player summon 5 erratic sentrys from one mob
README: Update 3.3.5 build status badge

(cherry picked from commit 708e36c920cb337eb39b020937d417b02a37d4a8)

Conflicts:
	README.md
Merge branch '3.3.5' of https://github.com/TrinityCore/TrinityCore into ghbb