Added new commands to implementation of ticket #588
Created branch for ticket #588
Implemented ticket #585 "Enable wave file reads"
Implemented ticket #584 "Create plugins menu"
Fixed issue #583 "Editor cannot resolve subnamespace of 'this'"
Fixed an issue in implementation of #579 introduced with [r869]
Fixed issue #582 "Documentation index needs some cleaning-up"
Fixed issue #581 "Terminal procedure autocompletion issue"
Implemented ticket #579 "Package creator projects"