I suck.

Fixed OSX Installer thinking builds failed that didn't
Fixes issue 1134


git-svn-id: http://svn.dmdirc.com/trunk@3903 00569f92-eb28-0410-84fd-f71c24880f

installer/osx/makeInstallerOSX.sh

 		createImage ${IMAGESIZE}
 	done;
 	
-	if [ ${MVRES} -eq 0 ]; then
+	if [ ${MVRES} -ne 0 ]; then
 		echo "OSX Build Failed - Imagesize: ${IMAGESIZE}"
 		exit 1;
 	fi;