packages/fs: fs_create: strip mkreiserfs of its interactivity.
packages/pkgbuild: pkgbuild_init: do not check for pacman.

Some kinds of environments (like migration framework) do not have yaourt
at the time of invocation of build scripts (moreover, they build yaourt
with these scripts). Account for it.
packages/pkgbuild: pkgbuild_sanitize: always clean 'src' in non-devel packages.
packages/text: text_merge_files: get rid of -o noclobber heritage.
Merge /mnt/data1/__install/arch/system/framework