Update System.ValueTuple in templates to the official public pre-release. 

Fixed binary reader error message

[WIP] Adding extra detail to error messages

Cleanup printf

1. Update System.ValueTuple in templates to the official public pre-release.  2. remove a couple of reference tests that were flaky on many platforms due to a dependence on specific VS installation options.  3. Update a test that was relient on an installation of .Net 2.0

Add fsc.exe.config/fsi.exe.config and fsiAnyCpu.config to setup.  And…

Using isNull when possible

Suggest types - fixes #1446

Array.choose with less memory use

FSharp.Compiler.dll and the FSharp.LanguageService.Compiler.dll compiled with peverify issues.

Cleanup use of internal functions

Faster parallel array partition and choose

More Efficient algorithm for List.groupBy 

Add support for System.ValueTuple to existing f# templates

Small cleanup in reflect.fs

Cleanup isNotNull

Fix fsharp.core.dll copies