Context Navigation

Changes between Initial Version and Version 1 of Ticket #28753, comment 4

initial	v1
3	3	* Removes the "Upload" tab and move it beside the title. Clicking the title button will toggle the upload frame on any of the tabs you are currently viewing.
4	4	* Removes plugin-install.js in favour of plugin.js.
5		* plugin.js includes the code previously in plugin-install.js and the Backbone to handle routing/toggling the upload button. I've never used backbone before so this code might be a little off.
	5	* plugin.js includes the code previously in plugin-install.js and the Backbone to handle routing/toggling the upload button. I've never used backbone before so this code might be a little off. Ideally it would be nice if there was a base controller that theme.js and plugin.js could extend so that both can share the same functionality without having duplicated code.