CB-5719 Incremented plugin version on dev branch.
Delete stale test/ directory
FFOS description added
no need to recreate the manifest.webapp file after each `cordova prepare`
fixing index + prompt response
CB-5980 Updated version and RELEASENOTES.md for release 0.2.6
Merge branch 'master' into dialog_in_window

Conflicts:
	src/firefoxos/notification.js