Removed Gravatar Size Option and added filter for gravatar size
Update Updated/Error message style (made it default wordpress style)
Convert px to rem
Merge upstream/foundation-5 into foundation-5

Conflicts:
	assets/rtpanel/scss/_modules.scss
	style.css
Merge upstream/foundation-5 into foundation-5

Conflicts:
	assets/rtpanel/scss/_modules.scss
	style.css
Merge pull request #67 from manishsongirkar/foundation-5

rtPanel Backend UI and Functionality changes