#63 add delegateListeners function
Merge pull request #69 from backbee/63

fix #63
[dnd] fix apply listener into two div embed #72
Merge pull request #73 from backbee/72

fix #72
#3411 new rangeselector component added and code cleaning
Merge branch 'master' of github.com:backbee/BbCoreJs into 3411