fixes after crowdsourcing spell/grammer control
JBIDE-17370 jst/jsf New and Noteworthy for 4.2.0.Beta2

What's new updated with JBIDE-17159 ([javascript] tern.java integration to improve JavaScript support)

Signed-off-by: vrubezhny <vrubezhny@exadel.com>
JBIDE-17377 Aerogear New and Noteworthy for 4.2.0.Beta2

Added N&N on cordova object in JavaScript Content Assistant

Signed-off-by: vrubezhny <vrubezhny@exadel.com>