[xs] Helpful hint in docs.
Avoid warning on install.
Merge branch 'release-v1.7.1-dgu' of ssh://github.com/datagovuk/ckan into release-v1.7.1-dgu
Fixes #279 by providing a new paster command

'paster help group' for more info.

 - Added adduser and removeuser to fix #279
 - show who the admins/users are and a small tidyup
 - make it easy to add/remove datasets to/from groups
 - removes unnecessary assert in DatasetCmd
 - Fixes problem purging groups (because of member relations)
Adding indexes to activity model to speed up login and fix #288
[noticket] Reduce the number of times we are told that a plugin loaded an auth function
[328] Publisher rights to deleted groups show up - fix.
[145] ONS work - Group changes.
Merge branch 'release-v1.7.1-dgu' of ssh://github.com/datagovuk/ckan into release-v1.7.1-dgu
[330] Fixes a bug in model.Group.search_by_name_or_title

The method wasn't filtering based on state and so was showing groups no matter
what state they were in. Have changed to filter only to show active.
Merge branch 'release-v1.7.1-dgu' of github.com:datagovuk/ckan into release-v1.7.1-dgu
[noticket] make sure tag does not load vocabs it does not have
Merge branch 'release-v1.7.1-dgu' into sql_profiling