GTK Themes: rename folders

gnome-shell: ops, and for dark last fixes

upd readme

readme: update icon

cinnamon: second recoloring wave

Changed green accents to plume colors,
updated thumbnail to current alpha-version of theme

gtk (both): three-dimensional buttons for xfce-panel

cinnamon: first recoloring wave

aurorae: fully working theme

XFWM4: thicker left-right borders

Bugfixes for #1

XFWM4: bigger bottom images
gtk.css (white): fix :selected color in treeview