Squashed commit of the following:

    Merge branch 'up_nunit3_final' of https://github.com/enricosada/visualfsharp into enricosada-up_nunit3_final
    git stats tests
    disable failing tests from ci ( using NO_CI tag )
    - core/load-script
    - core/members/basics
    - typeProviders/negTests
    Merge branch 'visualfsharp' into up_nunit3_final
    Merge pull request dotnet#757 from enricosada/remove_nodes_from_tests_proj
    excluded files (not in build) from fsharp suite project
    excluded files (not in build) from fsharp suite project
    fix upload xml tests results
    fsharp tests suite, parallelize tests execution by testfixture
    cleanup
    quote peverify path argument
    removed unused categories
    fix false negative, the bat does not check fsi errorlevel (was 1 instead of 0)
    remove duplicated code
    updated test to latest version
    test tests/fsharp/core/load-script is a false positive
    fixed the test, the result is same as the new implementation
    diff.exe does not support anymore the -dew argument
    update to latest version of bat (previous version was a false positive)
    Seq.take throws if less items than count, Seq.truncate return up to count items
    nunit 3 breaking change, TestCaseSourceAttribute require a static method
    ignore env var ILX_CONFIG
    fix build
    use nunit 2 xml format
    use fsx instead of powershell
    upgrade from nunit-console.exe (nunit v2) to nunit3-console.exe (nunit v3)
    remove unused

go back to not using the matrix

Revert "Misc. code alignment for FCS"

This reverts commit 0214e3b.

Update DEVGUIDE.md

Remove issue stats from README.md, as they don't ever update

fixes dotnet#165

Remove issue stats from README.md, as they don't ever update

fixes dotnet#165

Assorted test fixes found when running tests on internal infra

- Older NUnit used internally compares collections differently
  - Has trouble with nested collections
  - Enforces that empty collections have the same type (newer NUnit is lax about this)
- Add `NoMT` test tag to various new tests that don't support mixed .NET version testing (i.e. .NET 2/4 multitargeting)
- Make sure all IDE bits build with correct versions of VS SDK dependencies
  - IDE unit tests were all failing with latest VS RC installed
- Various small tweaks to account for versioning and file paths used by VS

closes dotnet#482

commit 539225b
Author: latkin <[email protected]>
Date:   Tue Jun 2 12:35:30 2015 -0700

    Add missing project file

commit f8d9fe8
Author: latkin <[email protected]>
Date:   Tue Jun 2 07:27:43 2015 -0700

    Another core unit tests fix

commit f6d830b
Author: latkin <[email protected]>
Date:   Thu May 28 13:33:08 2015 -0700

    Use correct, consistent versions of VS binaries

commit 827044c
Author: VFSharpTeam <[email protected]>
Date:   Thu May 28 10:01:23 2015 -0700

    More test fixes

commit fe8661f
Author: latkin <[email protected]>
Date:   Wed May 27 16:36:37 2015 -0700

    First batch

Merge branch 'master' into fsharp4

Merge branch 'master' into fsharp4

Merge branch 'master' into fsharp4

Conflicts:
	src/fsharp/FSharp.Core.Unittests/FSharp.Core/PrimTypes.fs