updated XCCDF naming, user_owner_grub_conf -> file_user_owner_grub_conf

via:
sed -i 's/\"user_owner_grub_conf/\"file_user_owner_grub_conf/g'
added remediation for file_user_owner_grub_conf
updated CCE for RHEL7 updating

noticed a CCE naming conflict, updated RHEL7 CCE..

$ grep -rin 26995-1 *
RHEL/6/input/system/accounts/physical.xml:36:<ident cce="26995-1" />
RHEL/7/input/system/software/updating.xml:71:<ident cce="26995-1" />
[shawnw@ssg-rhel6-devbox scap-security-guide]$ vim shared/
fixes/      .gitignore  modules/    oval/       references/ transforms/ utils/
[shawnw@ssg-rhel6-devbox scap-security-guide]$ vim shared/references/cce-rhel-avail.txt
[shawnw@ssg-rhel6-devbox scap-security-guide]$ vim shared/references/cce-rhel-avail.txt
[shawnw@ssg-rhel6-devbox scap-security-guide]$ grep -rin 27596-6 *
RHEL/6/input/system/software/disk_partitioning.xml:161:<ident cce="27596-6"/>
[shawnw@ssg-rhel6-devbox scap-security-guide]$ vim shared/references/cce-rhel-avail.txt
[shawnw@ssg-rhel6-devbox scap-security-guide]$ grep -rin 27261-7 *
RHEL/6/input/services/base.xml:338:<ident cce="27261-7" />
[shawnw@ssg-rhel6-devbox scap-security-guide]$ vim shared/references/cce-rhel-avail.txt
[shawnw@ssg-rhel6-devbox scap-security-guide]$ grep -rin 26913-4 *
RHEL/6/input/services/base.xml:189:<ident cce="26913-4" />
[shawnw@ssg-rhel6-devbox scap-security-guide]$ vim shared/references/cce-rhel-avail.txt
[shawnw@ssg-rhel6-devbox scap-security-guide]$ grep -rin 27249-2 *
RHEL/6/input/services/cron.xml:61:<ident cce="27249-2" />
[shawnw@ssg-rhel6-devbox scap-security-guide]$ vim shared/references/cce-rhel-avail.txt
[shawnw@ssg-rhel6-devbox scap-security-guide]$ grep -rin 26928-2 *
RHEL/6/input/services/base.xml:299:<ident cce="26928-2" />
shared/references/cce-rhel-avail.txt:200:CCE-26928-2
[shawnw@ssg-rhel6-devbox scap-security-guide]$ grep -rin 26928-2 *
RHEL/6/input/services/base.xml:299:<ident cce="26928-2" />
shared/references/cce-rhel-avail.txt:200:CCE-26928-2
[shawnw@ssg-rhel6-devbox scap-security-guide]$ vim shared/references/cce-rhel-avail.txt
[shawnw@ssg-rhel6-devbox scap-security-guide]$ grep -rin 26642-9 *
[shawnw@ssg-rhel6-devbox scap-security-guide]$ grep -rin 26642-9 *
RHEL/6/input/system/permissions/files.xml:514:<ident cce="26642-9" />
shared/references/cce-rhel-avail.txt:205:CCE-26642-9
[shawnw@ssg-rhel6-devbox scap-security-guide]$ vim shared/references/cce-rhel-avail.txt
[shawnw@ssg-rhel6-devbox scap-security-guide]$ grep -rin 26989-4 *

[shawnw@ssg-rhel6-devbox scap-security-guide]$ grep -rin 26989-4 *
shared/references/cce-rhel-avail.txt:1:CCE-26989-4
[shawnw@ssg-rhel6-devbox scap-security-guide]$ grep -rin 26989-4 *
shared/references/cce-rhel-avail.txt:1:CCE-26989-4
[shawnw@ssg-rhel6-devbox scap-security-guide]$ vim shared/references/cce-rhel-avail.txt
[shawnw@ssg-rhel6-devbox scap-security-guide]$ #26989-4
XCCDF naming update, "group_owner_grub_conf" -> file_group_owner_grub_conf

alighned xccdf/oval names for templating
sed -i 's/\"group_owner_grub_conf/\"file_group_owner_grub_conf/g'
new remediation for file_group_owner_grub_conf.sh
aligning XCCDF, permissions_grub_conf->file_permissions_grub_conf

sed -i 's/\"permissions_grub_conf/\"file_permissions_grub_conf/g' OpenStack/input/profiles/stig-rhevm3.xml RHEL/6/input/auxiliary/stig_overlay.xml RHEL/6/input/profiles/* RHEVM3/input/profiles/*
new remediation for file_permissions_grub_conf.sh
updated PR 369 - removed RHEL7 linkage

per gabe's comments, removing rhel7 linkage
Merge pull request #369 from shawndwells/CCE-26995-1-grub_file_perms

CCE 26995-1 grub file perms