Update iconfont set with latest.
- Replace MySQL and Java. Add Clojure, Scala, Custom, Grails, Joomla, Jquery and Play
- new icomoon app .json file of set
- Remove older openshift-logos-icon.dev.svg icomoon app file of set
Merge pull request #4050 from sg00dwin/update-icon-set

Merged by openshift-bot