KeyPairPresistence now tries to fix folder permissions.
An exception is no longer thrown if the folder permissions can be fixed.
Fixes bug 19274.
Fix scrolling in SWF.ListView.EnsureVisible(int index)

This fixes https://bugzilla.xamarin.com/show_bug.cgi?id=22483
[mdoc] New make test for the --dropns functionality
[mdoc] New make test, reproduces issue with --dropns when run with a secondary assembly that doesn't drop the specified namespace
[mdoc] added -dropns-assemblies parameter.
Will now only replace the namespace when the type or member is in a listed assembly
[mdoc] Formatting feedback from pull #1273
Maximum large object size should be limited by SSIZE_MAX not SIZE_MAX.
The latter appears to be a hangover from 32-bit systems.
[mdoc] consolidated dropns and dropns-assemblies into a single parameter.

Based on pull request feedback, this is a simpler usage, and meets our required use-case. A sample version of this parameter would be: `--dropns MyUnifiedAssembly=MyDroppedPrefix`
[System] Add performanceCounters element to System.Diagnostics app.config configuration section

See http://msdn.microsoft.com/en-us/library/ms229387(v=vs.110).aspx for details about the element.
The value that is set by the element isn't currently used in Mono, but applications using it in their app.config crash otherwise (e.g. http://stackoverflow.com/questions/25741651).
[xbuild] Use ToolPath when building ToolTask execution path. Fixes #22981
Fixed NullReferenceException.
Added test for optional {V}Specified and ShouldSerialize{V}.
{V}Specified is a property or field and ShouldSerialize{V} is a method that can be set to false if we do not want to serialize an attribute with name {V}.
Added optional serialization based on ShouldSerialize{V}.
SerializationCodeGenerator and XmlSerializationWriterInterpreter will no longer serialize an attribute named {V} if its object has a method named ShouldSerialize{V}() that returns false.
{V}Specified now is also checked to be true before serializating the attribute even if it is a property that is not settable.
Fixes #1852.
Test serialization wen class has method bool ShouldSerialize<T>().
.NET throws an exception but it should have no effect on the serialization.
Ignore method ShouldSerialize if it is a generic.
Merge pull request #1257 from esdrubal/xmloptional

Added optional serialization based on ShouldSerialize{V}.
[xbuild] Workaround for null log service (which should never be null)
Test xml serialization of nullable array items. Covers #19012.
If not specified assume that array items are nullable. Fixes #19012.
Merge pull request #1286 from esdrubal/xmlnullablearrayitem

XmlSerializer nullable array items.