Add example trip query.
Add form field model.
Add tax rule model.
Add photo retail item model.
Eliminate use of short php array syntax.
Bugfix in calling built in methods via set wrapper.
Add photo and photo set models.
Bugfix in photo retail item reference.
Bugfix causing exception in caching.
Add payment class (limited functionality) for initiating payments.
Bugfix in Phpdoc in model delete.
Eliminate caching for payments.
Code cleanup.
Better error handling.
Fetch stream meta data and use it to identify the HTTP status code.
Clear token cache on a forbidden response.
Allow register 3rd party default cache types.
Create isViableDefaultCacheType function for detecting cache availability.
Remove shorthand array syntax.
Merge branch 'release/0.2.5'