Manually updating the build version to `1.3.3.0`.

Skipping the InteractiveWindow Clipboard UnitTests as they cannot run on VS2015.2

Merge microupdate 3.2 into microupdate

fixed DifferenceViewer leak

this leak was responsible for about 14% of managed memory in customer's dump.

basically, in certain condition, if cancellation exception is thrown, we will not close difference viewer which cause
all text views to leak. that cause all taggers and text buffers to leak and that cause our preview workspaces to alive.
which in turn cause all solutions to alive and so on. all those objects (view, buffer, workspace, solution) are quite
big graphs. so ends up eat up 14% of memory.

added assert to make sure if we leak viewers again, we get some kind of notification.

Enable release nugets in microupdate-3.2 branch

fixed 2 memory leaks

Only compute entry points when compiling everything.

Fixes #12113

Simplify script to use nuget.exe for prerelease dependency validation instead of adding custom logic in the script for this.

This commit makes it so that we will always try to generate release nugets except if they depend on prerelease packages. If one of our nuget packages happens to depend on prerelease packages, then when building release nugets, we will simply print a message in the build output and skip release nuget generation for that package (and allow the overall build to succeed).

Use nuget.exe 3.5.0.1484

first one is preview workspace leak due to diagnostic service hold onto workspace.
second is capturing project in diagnostic exception handler

Update the Roslyn version to 1.3.2

port of #12041 for microupdate

found one more case where documentId can be null

Fix Interactive Window versioning (don't version separately)...

Revert changes to PreReleaseOnlyPackages

Re-enable generating release packages Microsoft.CodeAnalysis.EditorFeatures.Text, Microsoft.VisualStudio.LanguageServices, and Microsoft.Net.Compilers for publishing to nuget.org.
It does not change the set of pre-release packages generated.

Reverts change from bd23fe4f.

Change version to 1.3.1

Add option to disable converting metadata to project references

fix crash due to result existing both in compiler and ide side.

The test fired cancellation then waited 100ms for cancellation to be acknowledged.
There's no guarantee on a heavily loaded machine that cancellation will be
acknowledged in that time frame. This test should be reliable, so this 
removes the time out to prevent flakiness. Fixes #11819

disable workspace document events on project disconnect

Revert changes to generate release NuGet packages

The build will generate pre-release packages as before recent changes, with a post-build step used to generate release packages.

Reverts changes from bd23fe4f and 169f8e8a.