[#306] Fix error where icon passed to qs in links
Fix IRC channel link in README

Link to #ckan channel on webchat.freenode.net
Update issue tracker link in README
Update contributing link in README
[#287] Add is_datastore_supported method to tests and engine_is_pg to model
[#287] Log warning if the database is not a pg database. Skip datastore tests, if there is no support for them.
[#257] Set timeout to 10 seconds in recline source
Merge pull request #306 from okfn/306-header-link-icon-qs

?icon=None in links that use h.url_for with the icon attribute
[#316] Disable follower lists

Disable follower lists for normal users

Make it so that only sysadmins can see a dataset, user or group's list
of followers.

Add auth functions to user, dataset and group follower_list functions.

user controller, group controller, package controller:
  /followers pages send 401 if not authorized

Remove followers tabs from user, dataset and group pages.

Some tests need to be fixed now
[#316] Update follower api tests

Make it pass a sysadmin's API key whenever calling *_follower_list,
since only sysadmins are authorised to call that now.
[#257] Set the timeout outside the recline source so that it can be updated without patching the source again
Merge and close #257
[#316] Update follower frontend tests
[#316] Add tests for new follower list auth
[#316] Remove "started following" activities
[#316] Update activity streams API tests
[#316] Update activity streams frontend tests
Remove theme folder from gitignore
Merge branch '330-fix-gitignore'
[#316] Add auth for followee_list APIs

Don't let visitors or other users see what a user is following.