Set CMAKE_MODULE_PATH & CMAKE_TEMPLATE_PATH to CMAKE_CURRENT_SOURCE_DIR

	* This allows us to shift all the cmake options to top of script
file and also, if we deal with any recursive subdirectories in the
future, prevents us from dealing with multiple versions of those vars
Introduce BUNDLE_* vars for use with generating our Info.plist file

	* Use BUNDLE_NAME as output name for our bundle app
Add libgtk2.0-dev dep