hva: fix unintented class auto loading of Drivers::ESXi.
Merge pull request #334 from axsh/fix-esxi-class-loading

hva: fix unintented class auto loading of Drivers::ESXi.
Check whether selinux is disabled before trying to disable it. Otherwise setenforce will fail with exit status 1 and stop vdc.sh from executing
Apply a patch to ruby for a known bug that caused the build to fail on Centos/Redhat systems
Bash otaku improvements
Merge pull request #336 from axsh/bug-install-crash

Fixed some crashes when installing from scratch
add nil checks.
Merge pull request #337 from axsh/feature-shared-vol

Fix broken iSCSI shared storage support.
add NFS shared storage models and CLI.
change storage target driver class hieralchy.
add NFS target driver and make all them work.
update existing storage drivers.
add backup provider methods to raw file driver.