Started 1050 implementation and fix ups:

* Dat now loads (new animations aren't yet functional).
* Fixed the way we reference client versions.

TODO: Write new animation functionality & find out protocol changes.
Fix build error
Added preview state packet.
Update PIC_SIGNATURE can now access the character list.
Can now login to official tibia servers.
Added GameEnhancedAnimations to lua
Some minor changes/additions.
Added missing premium trigger opcode.
Merge pull request #549 from edubart/1050_impl

1050 Implementation and Fixes (excluding new animation features)
Can now login to Cipservers no problem.