Merge pull request #39 from techAPJ/patch-1

FEATURE: invite user with group support
FEATURE: recategorize a topic
Merge pull request #40 from techAPJ/master

FEATURE: recategorize a topic
Update categories latest request URL
Update test with correct categories latest URL
Add delete topic endpoint
Version bump
Merge pull request #42 from davidsantoso/delete-topic

Delete topic
Merge pull request #41 from davidsantoso/update-categories-latest

Update categories latest
Format fixtures for easier reading or editing
Reduce duplicate setting of api_key and user_name
Add topic update specs
Update a topics title and category
Merge pull request #43 from davidsantoso/topic-update-endpoints

Topic update endpoints
FEATURE: add sync_sso endpoint