Gruntfile: added config for jsdoc's path format
update version to 0.2.1
Update to use requirejs-dplugins 0.3.x.
Update decor version number to 0.2.2.
Remove the Invalidating#buildRendering() method since it sets up a reverse dependency
from decor --> delite.   Instead, expose initializeInvalidating() method for delite/Widget
to call.

Correspondingly, change decor version number to 0.3.0-alpha.

Refs ibms-js/delite#238, due to the name change from buildRendering() --> render().
clarify Destroyable doc
fix incorrect has flag which was preventing errors from being reported
update to 0.3.0 release, make sure we use a dojo that contains iOS8 fixes
JSDoc: add flag in Gruntfile to disable inclusion of Events section in TOC of API doc