Client PCL progress...
Merge remote-tracking branch 'origin/master' into pcl
PCL progress.
Added an implementation for DefaultSubmissionClient
Added support for Getting Settings Async.
Get the project to build.
Added constants for headers.
Add resolver and plugins to configuration.
Updated to the latest version of SimpleJson.cs
Added a unit test for configuration.
Added new Event models.
Removed ObjectId which won't be needed any more.
Merge remote-tracking branch 'origin/master' into pcl

Conflicts:
	Source/Clients/Shared/Net/RestClient.cs
Some PCL work.
Fixed a bug with SimpleJson.cs
Merge remote-tracking branch 'origin/master' into pcl
Merge branch 'pcl' of https://github.com/exceptionless/Exceptionless into pcl
Working toward refactoring to a more generic event based system.
Merge remote-tracking branch 'origin/master' into pcl
Merge branch 'pcl' of https://github.com/exceptionless/Exceptionless into pcl
Updated migrations.