minor ui clean up
updated default btn colour - fixed spelling error
Merge branch 'develop' of https://github.com/IHTSDO/MLDS into develop
Merge branch 'develop' of https://github.com/IHTSDO/MLDS into develop
updated icons
Merge branch 'develop' of https://github.com/IHTSDO/MLDS into develop
added page header class
added page header, thead