Add browser platform support for createmobilespec
Add browser platform support for createmobilespec

apache/cordova-mobile-spec,ollie314/cordova-mobile-spec,apache/cordova-mobile-spec,apache/cordova-mobile-spec,ollie314/cordova-mobile-spec,apache/cordova-mobile-spec,ollie314/cordova-mobile-spec,ollie314/cordova-mobile-spec,apache/cordova-mobile-spec,ollie314/cordova-mobile-spec