Fixed dismounting Plesiosaur when entering water.
Added Liopleurodon skeleton model.
Updated vases.
Updated language files.
Added ability to move up and down while riding Plesiosaur.
Made Plesiosaur riding faster.
New Plesiosaur animations.
Merge pull request #21 from 4f6f3b/master

Updated textures, plesiosaur model, some changes to plesiosaur riding.