Change cursor theme, add plank settings

dots/plank/plank.ini

@@ -0,0 +1,21 @@
+[dock1]
+icon-size=48
+show-dock-item=false
+position='left'
+dock-items=['sakura.dockitem', 'chromium-browser.dockitem', 'thunderbird.dockitem', 'emacs25.dockitem', 'gimp.dockitem', 'calibre-gui.dockitem']
+unhide-delay=0
+items-alignment='center'
+theme='Frost'
+hide-mode='intelligent'
+pinned-only=false
+auto-pinning=true
+alignment='center'
+zoom-percent=150
+hide-delay=0
+zoom-enabled=false
+monitor=''
+lock-items=false
+tooltips-enabled=true
+pressure-reveal=false
+offset=0
+current-workspace-only=false