Merge branch 'release/v0.1.4' into develop
Initial, basic support for
Helps if you test the correct HTTP response
Revised error handling
Added documentation to the execute method, noting that it will raise a ServiceError if there is a problem with the service.
Expands are auto-added if you attempt to traverse a nested property in your select query
Added support for query by id when type is Edm.Int64
Added test cases for long type ID support.

Expanded spec.
Merge github.com:nasali/ruby_odata into develop
Improved upon @nasali's code to support non-standard id names, and added a new property to the PropertyMetadata called is_key
Removed 1.8.7 testing with Travis as celluloid needs >=1.9.3
Merge branch 'feature/select_queries' into develop
Updated CHANGELOG
Version bump
Merge branch 'release/0.1.5'