Saule 1.7

• [BUGFIX] Serialise complex objects correctly (#149 by @laurence79)
• [BUGFIX] Do not require Accept header (#151 by @bjornharrtell)
• [FEATURE] Optional links support (#153 by @bjornharrtell)
• [BUGFIX] Fix regression missing 'data' key for relationships when using DisableDefaultIncluded (#155 by @bjornharrtell)
• [FEATURE] Add support for metadata (#158)
• [BUGFIX] Omit data for relationship objects not existing as property in the original model (#161 by @bjornharrtell)
• [FEATURE] Pagination page size (#165 by @erikhejl, #170 by @sergey-litvinov-work)
• [FEATURE] Configuration improvments (formatter can be only add at end of the collection, without deleting other formatters) (#168 by @tomasjurasek)
• [FEATURE] Functionality to return list of HttpErrors instead of just one error (#172 by @sergey-litvinov-work)
• [FEATURE] Added deserialization method to JsonApiSerializer<T> (#179 @madsphi)
• [FEATURE] Provide ability to handle JsonApi parameters in WebApi action itself manually (#181 by @sergey-litvinov-work)
• [MAINTENANCE] Upgrade xunit dependencies (#183 by @bjornharrtell)
• [BUGFIX] Fix regression with omitted data (#184 by @bjornharrtell)
• [FEATURE] Opt into JsonApi per webapi endpoint (#187, #189 by @barsh)
• [FEATURE] Option to serialize attributes in camelCase (#190 by @barsh)