GUI-1375
moved authenticate log message to login view, added request IP address
GUI-1375
re-factored code to get remote addr from headers
Merge branch 'develop' into GUI-1375
added IP to log message
resolved conflict
GUI-1375: Minor PEP8 fixes
Merge pull request #1081 from eucalyptus/GUI-1375

GUI-1375 moved authenticate log message to login view, added request IP address