Merge pull request #4 from udarakr/master

embed popover
remove place holder image when gadget is added in view mode.
Merge remote-tracking branch 'origin/master'
adding gadget banners
fixing review and description px
Merge branch 'master' of https://github.com/wso2/ues
fixing UES-224.(recommitting what was undone by c7168eb)
fixing UES-400
Merge branch 'master' of github.com:wso2/ues
localhost changes
fixing UES-430
Merge branch 'master' of https://github.com/wso2/ues
Merge branch 'master' of https://github.com/wso2/ues
Merge branch 'master' of https://github.com/wso2/ues
dashboard selection modal and store slideshow
dashboard selection modal and store slideshow
layout selector modal