center name in hud
Merge pull request #1642 from edisonout/centerhud

Centers the player's name in hud
Adds the version to the traceback

This will address #1651. Sentry e-mails will include this text, which
will make it more clear the version of the game that errors are
originating from.
Merge pull request #1652 from Protuhj/add_version_to_traceback

Adds the version to the traceback
Weapon:draw() is now properly managed
Merge pull request #1655 from DaNiwa/mallet

Weapon:draw() is now properly managed for 2.5d