Implement pending cukes for filtering purchases
More compact worfklow_state definition in Purchase
Merge pull request #128 from datasektionen/simplify-purchase-workflow-definition

More compact worfklow_state definition in Purchase
Swap mysql for postgresql

* Remove mysql
* Remove sunspot-related gems
* Add pg gem
* Add textacular for searching
trigram migrations for textacular fuzzy_search
updated database.yml.sample for postgres
remove sunspot references
rewrite search to use postgres
fix broken notifier tests
Tidy up PurchaseController#index

We are actually only filtering purchases here, and that we can do with plain db
queries.
use :sql db schema format
Add search field to purchases list

It is now possible to search purchase descriptions
Merge branch 'filter-purchase-scenarios' into search-with-postgres

Conflicts:
	features/step_definitions/purchase_steps.rb