First attempt at URL Builder functionality in NCSS Grid HTML form.
Added URL builder for NCSS Grid / Grid as Point web interfaces.
Merge branch 'exp-urlBuilder' of https://github.com/lesserwhirls/thredds into lesserwhirls-exp-urlBuilder
Slight visual tweaks to Sean's NCSS Request URL display.
* Made the URL a simple text element instead of an input element.
* Move it to the bottom of the page, just above the Submit/Reset buttons.
* Styled it in a grey "code box".
Merge branch 'lesserwhirls-exp-urlBuilder' into 4.5.2
docs
[maven-release-plugin] prepare release v4.5.2
[maven-release-plugin] prepare for next development iteration
Make Travis actually run tests.

mvn test by itself does not actually run any tests.
Coverity fixes