GUI-1180
fixed trust entity lookup and other things I found related to addition of account support
added link to role detail help
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. linked new bucket dash icon