Switching to linux for development of pglab.

Switched from qmake to cmake. Code changes to make it compile.

pglab/icons/desktop.ini

@@ -0,0 +1,14 @@
+[LocalizedFileNames]
+server_go.png=@server_go.png,0
+server_add.png=@server_add.png,0
+server_delete.png=@server_delete.png,0
+script_lightning.png=@script_lightning.png,0
+script_delete.png=@script_delete.png,0
+script_go.png=@script_go.png,0
+database.png=@database.png,0
+script.png=@script.png,0
+folder.png=@folder.png,0
+script_save.png=@script_save.png,0
+lightbulb.png=@lightbulb.png,0
+table_save.png=@table_save.png,0
+lightbulb_off.png=@lightbulb_off.png,0