[#172] Ensure deleting Mongo OAuth2 works

- Deletion was not working previously; it was not deleting the
  zf-oauth2.mongo key.
[#172] Fix conditionals declaration

- Bad conditionals declaration meant that toggle defaults were not being
  recognized. Fixing them allows edit form/cancel actions to work.
Rebuilt UI distribution
Merge branch 'hotfix/172'

Close #172
[#196] Always render collections for admin APIs

- Adds a route listener to set the `render_collections` flag of the Hal
  plugin to `true` if an admin service is detected.
CS fixes (includes)
Merge branch 'hotfix/196'

Close #196
[#190] Allow -1 as page_size value

- Allows -1 as a page size value, to allow disabling pagination.