Fix #196 - add script to replace F# 4.0 SDK on machine

fixes #148
closes #184

commit a43070e2e0ffb2e4630e4e1e52632aad24d58801
Merge: 5e244728 be66b39
Author: latkin <latkin@microsoft.com>
Date:   Mon Feb 2 15:40:44 2015 -0800

    Merge branch 'xml-fix' of https://github.com/ReedCopsey/visualfsharp into ReedCopsey-xml-fix

commit be66b39debb03f5bc9cbe2630d988f9fa862b729
Author: ReedCopsey <reed@reedcopsey.com>
Date:   Mon Feb 2 10:47:51 2015 -0800

    Corrected UnitOfMeasure XML Tests

    These previously required there to be an empty "member" variable for the
    indices to match.  Adjusted indices to match new, correct generated XML

commit fe1ef0dda5ef1373d46998379d54f121f996cd7a
Author: ReedCopsey <reed@reedcopsey.com>
Date:   Fri Jan 30 17:32:28 2015 -0800

    Added Basic\xmlDoc005.fs test

    To check that no empty members are generated.

commit 5450b68e9d1b518f79e74441433c4078956cbd0c
Author: ReedCopsey <reed@reedcopsey.com>
Date:   Fri Jan 30 13:58:43 2015 -0800

    Correct writeXmlDoc.addMembers

    Prevent members from being added to the global member list when the
    xmlDoc contains no content.

Conflicts:
	.gitignore

closes #179

commit b83531fb8893c3e81a60885af17f6b8eb7c46ee6
Author: latkin <latkin@microsoft.com>
Date:   Fri Jan 30 09:20:00 2015 -0800

    Smarter normalization of line endings -- handle \r\n and plain \n

commit 65ba3d717d9d9e37f589f5efb811d5f8d7825339
Author: latkin <latkin@microsoft.com>
Date:   Fri Jan 30 01:05:34 2015 -0800

    Cleanup/fixes to unit test project

commit 71eff0d253ad011b2603d56c366491574a158b7c
Author: latkin <latkin@microsoft.com>
Date:   Fri Jan 30 00:32:28 2015 -0800

    Add comments, cleanup

commit 0c5a13390be7018abdfaf8689aad79d9e0b899b9
Author: latkin <latkin@microsoft.com>
Date:   Fri Jan 30 00:15:26 2015 -0800

    Unification and refactoring

commit dc4d9309fc20970122e61156f87ff4c7f224ebdb
Author: latkin <latkin@microsoft.com>
Date:   Thu Jan 29 22:38:12 2015 -0800

    Fix up net20 tests, adjust fsproj

commit 65e231916d840a57d746c1724fc182633ddacb00
Author: latkin <latkin@microsoft.com>
Date:   Thu Jan 29 19:06:34 2015 -0800

    Fix up surface area tests

Add more profiles to appveyor build.  Thank you for taking care of this.

doc fix

Fixes issue [https://github.com/Microsoft/visualfsharp/issues/185](https...

Fixes issue [https://github.com/Microsoft/visualfsharp/issues/185](https://github.com/Microsoft/visualfsharp/issues/185)
Removes the directory FSharp-4.0.30603.0 from the lkg
does not permanently delete the files.

revert to use msbuild libraries that come with the core framework, which requires eliminating .net 4.51 checking when building proto compiler.
when building the protocompiler, Seq.list is not available so instead use copied implementation for generalized slicing parser only when building proto compiler.