See the Git log for detailed information
http://pileus.org/git/?p=grits
+v0.8 (2013/01/28):
+ * Change website
+ * Add compass rose
+ * Improvie mouse support for objects
+ * Initial support for GTK 3
+
v0.7 (2012/02/15):
* Add high resolution OpenStreetMap maps
* Allow images in GritsTile