update screenshots

- based on altlinux-6.994.0_beta20130428-simply-x86_64-install-dvd5.iso
update version
7.0-alt2

- update screenshots
whatis-alt: added text about platform (p7)
Merge branch 'master' into simply-linux
packages: copy acc method from master branch
Edit info about "how to set-up printer".

Now it againt use alterator module.