Fix spelling error
Implement js to return neon version
Added bound versionString; added fn to fill out version string
Putting a timeout on the call for the version string to push its update to the next apply cycle after initialization is complete.  If this is expanded upon, it may be worth pushing into a service that uses promises to handle asynchronous data loads during application initialization.
Added an About Neon modal to the Powered by Neon link.  Also changed how the version info is called to load it only once, just prior to an About Neon dialog being displayed. Thereafter, the cached version is displayed.  This information is no longer pulled during directive initialization.
Removing extraneous neon version request from the main controller.  This has moved to the powered by neon directive.