Added pmanager in order to make partition snippet simple
Added replacement of '-' with '--' for vg and lv names
fix rhsm register exit code
fix rhsm register exit code 2
move trap to after rhsm register
fix rhsm register erroring
Tiny fixes according to comments
Added partition refresh before and after cleaning
Added manual drive geometry for grub installation
Merge pull request #519 from dmi-try/fuel-3.1.1

* Fixes disk booting issue
* Fixes RedHat release downloading