Fixed --help & --version to exit without error.

$ ./garb/garbd --version
 INFO: 3.8.r3272
$ echo $?
0
On SLES11 SP2 the libgfortran.3.so provider must be explicitly defined
Added Prefer to get SLES11 builds install correct build dependencies.
Switch Prefer to BuildRequires
refs #171 parametrized package name, correct openssl dependency
Squashed commit of the following:

commit b0f13a36724ca507f19c3555051b8729cebd304f Author: Teemu Ollakka
<teemu.ollakka@codership.com> Date: Tue Nov 4 16:02:37 2014 +0200

    Proper openssl dependency.

commit 78d6f7e4d8392c93e14b30bff1a0c40467650c29
Author: Teemu Ollakka <teemu.ollakka@codership.com>
Date:   Tue Nov 4 13:10:54 2014 +0200

    Parametrized package name.
Tweaks to spec file to make it work with build scripts.
Made both version and release configurable in galera-obs.spec
refs #171 parametrized package name, correct openssl dependency
Squashed commit of the following:

commit b0f13a36724ca507f19c3555051b8729cebd304f Author: Teemu Ollakka
<teemu.ollakka@codership.com> Date: Tue Nov 4 16:02:37 2014 +0200

    Proper openssl dependency.

commit 78d6f7e4d8392c93e14b30bff1a0c40467650c29
Author: Teemu Ollakka <teemu.ollakka@codership.com>
Date:   Tue Nov 4 13:10:54 2014 +0200

    Parametrized package name.
Remove chkconfig from install dependencies as /usr/bin/chkconfig is by default everywhere anyway. Closes #1
Buildignore GCC 4.3 on OBS
Merge remote-tracking branch 'ottok/3.x' into 3.x

Conflicts:
	scripts/packages/galera-obs.spec
Removed unnecessary obsoletes definition in the package about itself
Create symlink required by SUSE policy
Merge branch '3.x' of https://github.com/codership/galera into 3.x
Bugfix: correct path for symlink
Init levels and requirements with to follow policy at https://wiki.debian.org/LSBInitScripts
Merge pull request #176 from ottok/3.x

Small fixes to RPM packaging on OBS
Refs #166 - since I can't reproduce the bug, I'm adding more diagnostic output in case of assertion.
refs #177 nmap dependency, use runsuser instead of sudo
refs #179 fixed typo in garb config file