no more uses of %g in printf as it tends to lose precision too often (this caused...

no more uses of %g in printf as it tends to lose precision too often (this caused problems with ftos in QuakeC truncating numbers to 6 digits, a problem afflicting Prydon Gate especially)
still tries to print numbers briefly if possible (by checking if their value is an int)

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@3413 d7cf8633-e32d-0410-b094-e92efae38249