Challenge Promode Arena v1.46 Mod

This is mainly a maintainance release with the noticable changes for players being the return of the old lightning gun styles for CPMA and sound improvements and a memory leak fix for Challenge Quake 3.
The latest update of the Promode mod and Challenge executable are now ready for download. All players should upgrade to 1.46 and the executable is highly recommended but not required. Server admins should also consider upgrading to the Challenge exec