WFK2-636 Align Cordova with 3.4.

Added Cordova engine version to the project's config.json file.
This retains compatibility with JBDS 7.1.1.

Fixed random load time highlight issues with the navbar.

Corrected links in the READMEs.
WFK2-681 Clean up Maven profiles.

The minify profile in kitchensink-backbone is now documented.
Unnecessary profiles have been removed from other quickstarts.