Display the help message for the role detail view page
GUI-1180
fixed trust entity lookup and other things I found related to addition of account support
added link to role detail help
Merge pull request #867 from eucalyptus/DOC-1433-roledetail

DOC-1433-roledetail Display the help message for the role detail view page
resolved conflict
added icon_buckets.svg for object storage on dash
Merge pull request #872 from eucalyptus/GUI-1220

added icon_buckets.svg for object storage on dash
Merge pull request #871 from eucalyptus/GUI-1180

GUI-1180
merged develop