Add basic zypper and openSUSE support
Add openSUSE 13.2
fix typo
use /etc/os-release instead. Cannot test any of that locally. Sorry for the try and error
Fixed openSUSE recognition
Alphabetise the manager keys.
No need for so many choices here.

All we need is the ones we supply below, plus a few others for good
luck.
Comment & whitespace.
Test FedoraSystemProfile with verion 19.

It has an umlaut, to test non-ASCII support. At least I think that's
the reason I changed this.
Sometimes gcc is installed separately to the other OS X tools.

closes gh-312
Merge branch 'robwarm/opensuse'