add Makefile
xq: add -R
add zsh completion
xq: rmcol is not needed anymore
xnew: add support for sub package.
xnew: vmove man3 to -devel too
xsubpkg: new tool which searches for all subpackages of a package.
xbump: check common/shlibs for changes and commit them too.

if the shlibs contain new entries from other packages xbump will fail.
update autocompletion.
xbump: replace `...` by $(...)
xsubpkg: replace `...` by $(...); small performance improvement.
README: document xsubpkg
xlocate: fix for filenames with :
xlocate: use locatedb ~/.cache/xlocate.db if it exists
add xlint
xlint: detect trailing whitespace
xlint: detect empty variables
xlint: construct $variables only once
xlint: detect $*_SITE
xlint: optional /pub for $GNU_SITE