ENYO-2762: simplified text in KNOWN-BUGS.md
ENYO-2762: cosmetic improvement of KNOW-BUGS.md
ENYO-2762: typo
Merge pull request #425 from enyojs/ENYO-2762

ENYO-2762: new panel is added in the panel "Phonegap Build" in order to define some advance options.
Merge remote-tracking branch 'origin/master' into ENYO-2512