conf.sh: Increment LINUX_ARCHISO
conf.sh: Remove duplicate variable
push.sh: Rewrite

The script no longer pushes the demz-repo-* repositories. That is left to an
external script. push.sh only pushes the archzfs packages to aur as well as the
archzfs webpage documentation.
Reorganize archzfs tools

* Renamed most of the conf.sh variables.
* Separated build.sh and repo.sh
Update to 0.6.1_3.10.7-1