Fix redundant path issue in src.rpm logic.

When the Makefile itself was running the gen
script for src.rpms it was adding
"too much" path.

This adds just the right amount of path.
Bump pungi version and patch Lorax

Anaconda has dropped anaconda-runtime scripts and moved to Lorax in rhel7.
Pungi 2.0.22 still uses anaconda-runtime's buildinstall script, so we need
to bump the package to one that supports Lorax (2.13-2.el7).

- Use the default pungi binary (/usr/bin/pungi) and drop the patches in support/.
- Fix a bug in Lorax's treebuilder and (safely) apply the patch before
running pungi. This is a temporary workaround until we can add Lorax as
a srcrpm and patch it there.
Update version of RHEL to 7 in various files
Update RHEL version in cacti
Replace rpmquery with rpm -q

This fixes gen-makefile-from-src-rpm script on RHEL7.
It appears there are some bugs in rpmquery, and rpm -q is the
preferred route.
Fix typo in kickstart Makefile for SETUP_DEPS