Merge pull request #357 from wardi/master

prevent non-default dataset types from being copied
Order comments by changed date
Merge branch 'master' of c:/Users/thomros.STC/VirtualBox VMs/CentOS 6.4/Share/Repositories/ckanext-canada
Order comments by thread (does not need date)
Merge branch 'master' of c:/Users/thomros.STC/VirtualBox VMs/CentOS 6.4/Share/Repositories/ckanext-canada
Merge pull request #358 from thriuin/master

Order dataset comments by Drupal thread value
Merge pull request #361 from wardi/master

fix for travis-ci errors: test against pg 9.1 for now