* bugfix - PUT should have a payload for Mark as Read (#1579)
* bugfix - PUT should have a payload for Mark as Read
* also fix the Observable client test
* add integration tests for MarkRead methods
* Fixup MarkReadForRepository methods to specify a body in the PUT request
* Fix unit tests for regular and observable client
* helps if the new files are included in the test project :)
* Cloning ApiInfo object should work when some fields are null (#1580)
* Adjust ApiInfo.Clone() to work even if some elements (eg ETag) are null
* Remove c# 6 language feature and do it the old school way
* Add a test for cloning ApiInfo when some fields are null
* The 3 lists can never be null anyway so remove some un-needed statements
* Add test for null RateLimit
* Remove Rx-Main dependency from samples
This resolves#1592 - LINQPad doesn't understand how to restore this unlisted package and it's not actually needed in the samples.
* Adding RemovedFromProject and other missing EventInfoState types. (#1591)
* Adding missing review types to event info.
* Fixing whitespace.
* Reword `BaseRefChanged` comment
* Adding missing event types.
* Change response models 'Url' properties from `Uri` to `string` (#1585)
* Add convention test to ensure 'Url' properties are of type string
Closes#1582
* Change 'Url' properties from Uri to string
Global Find/Replace FTW!
* fix compilation errors in the integration tests project
* Extend 'Url' properties type check to request models
* Stick to convention tests naming convention
* Remove unused using directives in models
Changing from `Uri` to `string` means the `using System;`
directive was not needed anymore in some files
* Update exception message wording
* empty commit to trigger a new build - hopefully Travis passes
* add convention test to ensure request models have Uri 'Url' properties
* make request models 'Url' properties Uri
fix typo in convention test name
* revert some request models 'Url' properties as `string`
see https://github.com/octokit/octokit.net/pull/1585#issuecomment-297186728
* Change test so that all model types must have 'Url' properties of type string
- Filter test input to only get types which have 'Url' properties
- Merge response and request model types tests into one
- Unparameterize the exception since we only check for the string type now
* Fix string.Format tokens
If this PR doesn't get rebased, it'll be my wall of shame FOREVER!
* and then it's even more embarrassing when the commit message says rebased but you really meant squashed
* Remove exclusion of `Release` from request models
* add a build task to run LINQPad samples
* make modifications to the validation of LINQPad samples
* rename the CAKE task to its original name ValidateLINQPadSamples
* rename the LINQPad samples file so they get executed in ordinal order (1, 2, ..., 10 and not 1, 10, 2, ...)
* remove openssl linking in TravisCI when on macOS
