Added isoboot description for RHEL7
Added RHEL7 JeOS template
Use group_command=compat in yum.conf

if this is not used I get errors saying:
There is no installed groups file.
Use menu.c32 for live ISO boot menu if not gfxboot theme exists
Use lookup function to check for initrd tools pidof/killall5
Added vmxboot description for RHEL7
Added oemboot description for RHEL7
RHEL7 parted cannot set swap flag, skip this flag setup
Merge pull request #388 from openSUSE/review_140814_rhel7_support

Added support and JeOS template for RHEL7