Update magick-installer.sh

Updated to use new lib versions (libiconv, freetype, libpng, tiff, ghostscript, imagemagick), tested on Mountain Lion 10.8
Freetype version was out of date and it was throwing up errors with Rmagick.
Updated README to reflect testing in Mac OS X 10.8.2 and mention that it should be used from the home directory.
Update magick-installer.sh
Update magick-installer.sh
Merge branch 'master' of git://github.com/shinsyotta/magick-installer

Conflicts:
	magick-installer.sh
Merge branch 'master' of git://github.com/americos/magick-installer

Conflicts:
	magick-installer.sh
Update ghostscript-fonts-std download url
Update jpegsrc version to v9.