Make COM_ParseWarning report starting line number of multi-line tokens

COM_ParseWarning use to show last line number of multi-line string tokens, now shows starting line number.
Merge remote-tracking branch 'ioquake3/master'
Merge remote-tracking branch 'spearmint/master'
Add renderer dylib to mac scripts and use more variable
Merge remote-tracking branch 'ebx/master'
Change Mac OS X scripts for Turtle Arena