Update IDE.md - how to run IntelliJ projects
Update IDE.md - how to run IntelliJ projects

Updated info on how to run IntelliJ projects for IntelliJ 14.1.3 and Scala plugin 1.5.2
marcospereira/playframework,wsargent/playframework,zaneli/playframework,Shruti9520/playframework,benmccann/playframework,Shenker93/playframework,wegtam/playframework,rajeshpg/playframework,Shruti9520/playframework,ktoso/playframework,aradchykov/playframework,marcospereira/playframework,marcospereira/playframework,wegtam/playframework,benmccann/playframework,richdougherty/playframework,ktoso/playframework,benmccann/playframework,richdougherty/playframework,Shruti9520/playframework,Shenker93/playframework,ktoso/playframework,mkurz/playframework,Shenker93/playframework,wsargent/playframework,rajeshpg/playframework,rajeshpg/playframework,hagl/playframework,zaneli/playframework,richdougherty/playframework,mkurz/playframework,Shenker93/playframework,hagl/playframework,Shruti9520/playframework,playframework/playframework,ktoso/playframework,wegtam/playframework,marcospereira/playframework,playframework/playframework,hagl/playframework,richdougherty/playframework,benmccann/playframework,hagl/playframework,wegtam/playframework,mkurz/playframework,rajeshpg/playframework,wsargent/playframework,aradchykov/playframework,mkurz/playframework,wsargent/playframework,aradchykov/playframework,zaneli/playframework,playframework/playframework,aradchykov/playframework,zaneli/playframework