Corrected hashbang issue with Jumbotron.

https://github.com/kyoken74/gwt-angular/issues/70
Corrected misspelled name to "Custom Directive"
Moving site to a separate repo
Moving the tutorial and pages to gwt-angular-site repo
[maven-release-plugin] prepare release gwt-angular-0.0.52
[maven-release-plugin] prepare for next development iteration