Merge pull request #171 from rfellows/AngularDirectives

[PDI-11553] - Refactor the accordion-based layout
PDI-11158 - Build re-usable Browse widget
Merge pull request #173 from jeffreythomas/dev

PDI-11158 - Build re-usable Browse widget
Merge pull request #174 from rfellows/AngularDirectives

[PDI-11553] - Updating Instaview publish screen to use the new accordion wizard.
[PDI-11553] - Styling changes for the accordion wizard panels.