Applied cmangos-classic update z1852

Implement Creature Linking via database
https://github.com/cmangos/mangos-classic/commit/e545b319de841dc22293ae2
6c9347e1994ec6fae
Applied cmangos-classic update z1854

Implement jump (parabolic movement) effect
https://github.com/cmangos/mangos-classic/commit/ec710bf160d689243565115
1c0f9df9247e946d2
Applied cmangos-classic update z1873

Add support for db scripts assigned to gossip menus
https://github.com/cmangos/mangos-classic/commit/f4a073850ff4ec5ba56c327
77931787646ba1c03
Applied cmangos-classic update z1884

Fix table layout for `creature_linking_template`
https://github.com/cmangos/mangos-classic/commit/0c942b53cd8ebc670c73d21
c021e78ffe75312a0
Applied cmangos-classic update z1922

Let Waypoints fly. Thanks to qsa for the idea
https://github.com/cmangos/mangos-classic/commit/4dbfeb0603cb20f53d03f81
296cae0d40cfe961a