more auth


git-svn-id: http://observium.org/svn/observer/trunk@4307 61d68cd4-352d-0410-923a-c4978735b2b8
remove password from internal session if we're using cookie auth


git-svn-id: http://observium.org/svn/observer/trunk@4308 61d68cd4-352d-0410-923a-c4978735b2b8
change auth encoding to use friendlier characters. add useragent to user identity requirements.


git-svn-id: http://observium.org/svn/observer/trunk@4309 61d68cd4-352d-0410-923a-c4978735b2b8