removed uiconf header from google code.
incldue random number for version checks, CDN was caching miss
#FEC-2025 #time 2h #comment use regular expression instead of trim as trim is not supported by IE8
#FEC-2291 #time 1h #comment update viewed entries list on all change media options: autoContinue, user click and clickUrl
Merge pull request #1161 from kaltura/FEC-2025

#FEC-2025
#FEC-2291 #time 1h #comment fix entryId (undefined send when using clickUrl)
Merge pull request #1162 from kaltura/FEC-2291

#FEC-2291
bump v2.21.rc5
sync with 2.21
merge master