add omniture tracking for identity signin
alter the name of the omniture event variable to be a better description
Merge branch 'identity-signin-omniture' into identity-omniture-enhancements
Merge remote-tracking branch 'origin/master' into identity-omniture-enhancements
add missing omniture data for IDN-1556
change name of key for omnitur error message
Merge remote-tracking branch 'origin/master' into identity-omniture-enhancements
fixed erroneous key for omniture error message
Merge remote-tracking branch 'origin/master' into identity-omniture-enhancements
Merge pull request #1873 from guardian/identity-omniture-enhancements

Identity omniture enhancements