Merge pull request #564 from pranali333/develop

fix for upload link in media tab,css issue for theme twelvefourteen
fix activity upgrade CSS
version update
add addon license
add addon message in license tab
update readme
releasing rtMedia 3.7.10
change license label to licenses
change license text
add bp_activity_has_more_items
version update
update readme
update rtMedia-PRO feature list
bug fix for add media button on load