Bugfix for CancellationTokenSource (microsoft#593)

* Bugfix for CancellationTokenSource

Added initialization that was missing in the NetCoreTestContext and added a test to cover the net core scenario as well.

TestContext Properties type fixed to be IDictionary (microsoft#563)

* Ensured that the TestContext exposed is always IDictionary for back compat reasons.

fix microsoft#514: mark Microsoft.VisualStudio.TestPlatform.TestFrame…

…work.dll and Microsoft.VisualStudio.TestPlatform.TestFramework.Extensions.dll cls compliant (microsoft#516)

Cleaned up messages - issue microsoft#442 (microsoft#492)

Updating templates and wizards for 1.3.2 (microsoft#440)

Fix for AppDomain creation should honor runsettings (microsoft#427)

* Fix for AppDomain creation should honor runsettings

* Adding UT

* PR comments

Updating templates and wizards for 1.3.0 (microsoft#418)

Porting Fixes for 1.2.1 (microsoft#396)

* Fixing Key collision for test run parameters (microsoft#328)

* Base commit

* Adding Unit Test

* PR comments

* Adding logs for diagnostics

* Ignoring Test Temporarily

* Removing ignore

# Conflicts:
#	test/UnitTests/MSTest.CoreAdapter.Unit.Tests/Execution/TestExecutionManagerTests.cs

* Fixing the copyright in the nuspec files. (microsoft#350)

* Today even if classInit wasnt called we used to call class cleanup. f… (microsoft#372)

* Today even if classInit wasnt called we used to call class cleanup. fixing that and adding a test to cover the scenario
# Conflicts:
#	src/Adapter/MSTest.CoreAdapter/Execution/TestClassInfo.cs

* [Symbol archiving]Converting Portable pdb to full (microsoft#375)

* COnverting portable pdbs to full for Symbol archiving

* Fixing nuget package path

* Test fix

* Indent fix

* Update Fileversion for adapter and framework dlls (microsoft#337)

* File version update

* Moving to 15.6

* PR comments

* More PR comments

* Throwing exception only if it is of type TestPlatformFormatException (microsoft#332)

* Throwing exception only if it is of type TestPlatformFormatException

* test

* Fail discovery if any exception thrown in IDiscoveryContext.GetTestCaseFilter

* Fix masking assembly load faolure error message (microsoft#382)


# Conflicts:
#	src/Adapter/MSTest.CoreAdapter/Discovery/AssemblyEnumeratorWrapper.cs

Fixing the copyright in the nuspec files. (microsoft#350)

Updating Templates and Wizards for 1.2.0 release. (microsoft#285)