This code has been moved to http://dotnet/roslyn-project-system

Merge master into future

Conflicts:
	docs/Language Feature Status.md
	src/Compilers/CSharp/Portable/Binder/Binder_Expressions.cs
	src/VisualStudio/CSharp/Impl/Options/AutomationObject.cs

Metadata writer refactoring (4F)

Add a script that installs Roslyn VSIXes

fixed various small issues

Merging tuples into future branch

fix the issue where build diagnostics put into semantic slot doesn't de-dup to live on open file in some cases.

issue is build diagnostics can't be distinguished between syntax/semantic/nonlocal and everything is dump to semantic slot.

unfortunately this can't be fixed until build output more data than what it is output right now.

Re-add support for dynamic calls of local funcs

* Tuples: PR feedback on #10607
* Tuples: DisplayParts to support any tuple-like type

see also https://github.com/dotnet/roslyn/issues/10874

Entered tracking issues instead. In one case just fixed the isseu.

Tuples: adding feature flag

NOTE: the spec reflects the feature as it is being implemented.
It will definitely change in response to design changes as they are being implemented.

The format is also likely to change to make it more spec-like.
For starters it is just a loosely ordered list of feature descriptions.

(Literal, Lambda, InterpolatedString)
They do not have "Expression" at the end.