Use libtool intermediate library instead of static archive

Origina patch from gnome-system-toools by Gilles Dartiguelongue <gilles.dartiguelongue@esiee.org>
Add missing dependency for e-map intermediate library

Origina patch for gnome-system-tools by Gilles Dartiguelongue gilles.dartiguelongue@esiee.org
Remove distro folder.
Update readme for Distributions wrt to groups
Remove MATE category from dot desktop files.
Merge pull request #20 from flexiondotorg/1.6

Cherry picks for `mate-system-tools` 1.6