Lightgrid lighting for polygons (creep)

var_AmbientLight is disabled, because it causes Shader Link errors
on GL cards with too few varyings.
Fix for black creep in some places.
Missing return value.
remove con_restricted, which was ment for a commercial game to restrict opening the console, which hardly makes sense for us, or any project based hereon
removing some unused/defective imports for making the compiler happy
removing colorcodes from p_teamname, as scripts can now use them more freely (or set color actually by themselves)
removed an additional spacechar from output
Revert "md5sum should be checking in binary mode."

This reverts commit e489281cc25522d8133039f7ee5d52031c3f1bee.
Show booster heal range as a grey build marker
Allow for MD5 checksums generated in binary mode.
Show credits/evos in the team overlay.

This should help with organising rushes etc.
Merge branch 'master' into coins
add the autocompletion for /sell all
adding "alien weapons" and "none" to p_weaponname
add "none"-type p_classnames as well
make sure most p_* cvars get reset with a switch to sepctator team
Use the correct multiplication sign in /calc output.
Allow use of × and ÷ in /calc.
Don't print before initializing the console

Fixes an exception where we try to print to the console window with an invalid handle.
support unicode relations and operators for /math, /strcmp and /if in scriptfiles