Boris Johnson has argued that the UK needs to 'stop being embarrassed about its history' following a controversial decision made by BBC's Last Night Of The Proms.While orchestral versions of Land Of Hope And Glory and Rule Britannia! will be performed, it's reported that the lyrics won't be.The BBC has confirmed that the concert will go ahead this year on September 12 without an audience.However reports suggest that the words to the songs have been dropped due to concerns over associations with