Topic: Client r 545-547 changes

Replaced the sun and added corona with rotation and transparency.
Improved client performance when fighting.
Fixed a possible memory leak.
Particles should no longer "clip" after a resize event.
Bufs will now flash earlier when about to run out.
Added weapon plus calculation to /calcweapon command.
Added ability to assign action buttons for action 11-20.

Amethyst        T0    Pyr     30
Cisco                T4    Sco    90
Delphi              T1    Eng    21
Neuropath      T0    Tel     10