Fixed 'Bug 17338 - With "Visibility: All members" selected, internal
members not shown when browsing System.ServiceModel.Web'.
Bump nrefactory/track API changes.
[TextEditor] Implemented layout cache for caching native pango layout
objects.
[TextEditor] Use the layout cache in other frequently done operations.
updated debugger-libs
[Debugger] Fixed loading of strings into the HexEditorVisualizer

Fixes bug #17276
bumped debugger-libs to fix bug #17244
Fixed 'Bug 17358 - C# object initializer auto complete " = " insertion
causes problems'.
[SourceEditor] Fixed completion option panel bug
[UnitTests] Fixed unit test.
[Ide] Properties are now sorted before extension methods in
completion.
Fixed 'Bug 12831 - Moving code around causes both an error and messed up UI'
[Debugger] Instead of blocking waiting for all async tasks to complete, simply cancel them.

Fixes bug #14190
[Ide] Quadruple the application output window buffer size

Might help bug #16712
Change it back to 4k
[Debugger] Don't scroll to the top when adding new expressions/watches

Fixes bug #16665
[MSBuild] Much better handling of per-project ToolsVersion

We now roundtrip ToolsVersion correctly, reducing project file churn.

Check for each project file that we have a MSBuild builder new enough
to handle its ToolsVersion.

Remove confusing warnings about sln version not matching ToolsVersion,
since it doesn't really matter, what matters is that we can handle
the project file's ToolsVersion.
[MSBuild] Default file format can no longer be changed

There is almost no reason to make it easy for users to default
to creating older file formats, all it does is increase chance
of messing things up. Projects can still be exported, loaded and
roundtripped with older formats, so we're not removing
functionality.

We now always create projects with the MSBuild12 file format,
which can be opened in VS2010 SP1 and later.
[MSBuild] Test ToolsVersion is loaded/converted correctly
[MSBuild] Per-solution build engine

Should fix BXC17076 - Add support $(SolutionDir) in monodevelop

And various other possible issues.