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
Merge pull request #2 from Gottox/master

xbump: check for changes in common/shlibs