Update notes for submitted changes

* Fixup clang build def to allow setting llvm version
Update notes for submitted changes

* Set correct plugin directory for intel chips
Update notes for submitted changes

* Set missing RPM dependancies for perl(group) perl(user)
Update notes for submitted changes

* Bump version to allow building on old kernel
Update notes for submitted changes

* Bump to version 2.1-rc2
Update notes for submitted changes

* Use systemd 208 for old kernels
Update notes for submitted changes

* Use gcj-jdk for subversion
Update notes for submitted changes

* Change CHROOTBUILD flags