Fixed #63. Added drupalgap.output to hold result of menu_execute_active_handler(). Changed template_process_page() to call menu_execute_active_handler() directly so the page is assembled before the regions are rendered. Removed unused 'page' argument from drupalgap_render_page() and changed the function to use drupalgap.ouput instead of calling menu_execute_active_handler() directly. Added drupalgap.router_path and changed menu_execute_active_handler() to set drupalgap.router_path and the page title with the current menu item's page title. Changed system_block_view() to render the page title without a link. Deprecated drupalgap.title in favor of drupalgap.pages.title, updated drupalgap_get_title() and drupalgap_set_title() to use the new variable, and updated UPGRADE.txt to explain this.