Registers help bundle with application. Refs #12.
Adds generation of help bundle directories. Refs #12.
Fleshes out index and adds general usage help. Refs #12.
Inserts changes logs in help bundle. Refs #12.
Adds licenses to help. Refs #12.
Fixes email hyperlink and full changes version. Refs #12.
Fixes destination directory generation. Refs #12.
Fixes help icon. Refs #12.
Generates search index with rst titles as anchors. Refs #12.
Adds "What's new" help menu item. Refs #12.
Forces removal of apple help caches during build. Refs #12.
Adds link to generated embedded docs. Refs #12.
Documents task in changes log. Refs #12.
Merge branch 'feature/t12_add_html_help'