Move to basic client/server structure.

dsst/__main__.py

@@ -1,10 +1,11 @@
-import sys
 import os.path
+import sys
+
 # Add current directory to python path
 path = os.path.realpath(os.path.abspath(__file__))
 sys.path.insert(0, os.path.dirname(path))
 
-from dsst_gtk3 import gtk_ui
+import gtk_ui
 
 if __name__ == '__main__':
     gtk_ui.main()