Bump mono & Touch.Unit

[lewurm]

Commit list for mono/mono:

• mono/mono@4adf8229e88 bump nunit-lite ([msbuild] Post-build msbuild targets firing before IPA creation #7139)
• mono/mono@de4729fae29 [mono-api-html] Expand "ignore" functionality ([monotouch-test] Fix UrlProtocolTest after a server we don't control changed its output. Fixes xamarin/maccore#2006. #7154)
• mono/mono@721462c4a15 [2017-12] [corlib] Fix RuntimeFeatureTest.NoNewFeaturesAdded on mobile (NSUrlSessionHandler.RemoveNotification () - SIGABRT: Value cannot be null. Parameter name: observer #7152)

Diff: mono/mono@177997b...4adf822

Commit list for spouliot/Touch.Unit:

• xamarin/Touch.Unit@4ac4e32 [TouchRunner] do not use FinallyDelegate in Runner, because it requires remoting API to be available ([mtouch] Properly link with CoreAudioKit when not using simlauncher. #49)

Diff: xamarin/Touch.Unit@b5b227e...4ac4e32

[lewurm]

this should, hopefully, fix the issue with nunitlite that we have seen.

[monojenkins]

Build failure

[spouliot]

@lewurm we're back to the older issue

	Unhandled Exception:
	System.NullReferenceException: Object reference not set to an instance of an object
	  at NUnitLite.Runner.ResultSummary.Visit (NUnit.Framework.Api.ITestResult result) [0x00000] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/mono/external/nunit-lite/NUnitLite-1.0.0/src/framework/Runner/ResultSummary.cs:140 
	  at NUnitLite.Runner.ResultSummary..ctor (NUnit.Framework.Api.ITestResult result) [0x00006] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/mono/external/nunit-lite/NUnitLite-1.0.0/src/framework/Runner/ResultSummary.cs:52 
	  at NUnitLite.Runner.NUnit2XmlOutputWriter.InitializeXmlFile (NUnit.Framework.Api.ITestResult result) [0x00000] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/mono/external/nunit-lite/NUnitLite-1.0.0/src/framework/Runner/OutputWriters/NUnit2XmlOutputWriter.cs:109 
	  at NUnitLite.Runner.NUnit2XmlOutputWriter.WriteXmlOutput (NUnit.Framework.Api.ITestResult result, System.Xml.XmlWriter xmlWriter) [0x00007] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/mono/external/nunit-lite/NUnitLite-1.0.0/src/framework/Runner/OutputWriters/NUnit2XmlOutputWriter.cs:102 
	  at NUnitLite.Runner.NUnit2XmlOutputWriter.WriteResultFile (NUnit.Framework.Api.ITestResult result, System.IO.TextWriter writer) [0x0000e] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/mono/external/nunit-lite/NUnitLite-1.0.0/src/framework/Runner/OutputWriters/NUnit2XmlOutputWriter.cs:90 
	  at MonoTouch.NUnit.NUnitOutputTextWriter.Close () [0x000bc] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/Touch.Unit/NUnitLite/TouchRunner/NUnitOutputTextWriter.cs:99 
	  at MonoTouch.NUnit.UI.BaseTouchRunner.CloseWriter () [0x0006c] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/Touch.Unit/NUnitLite/TouchRunner/TouchRunner.cs:354 
	  at MonoTouch.NUnit.UI.BaseTouchRunner.Run () [0x0003f] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/Touch.Unit/NUnitLite/TouchRunner/TouchRunner.cs:173 
	  at MonoTouch.NUnit.UI.BaseTouchRunner.<AutoRun>b__40_0 () [0x00000] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/Touch.Unit/NUnitLite/TouchRunner/TouchRunner.cs:139 
	  at MonoTouch.NUnit.UI.TouchRunner+<>c__DisplayClass19_0.<ExecuteOnMainThread>b__0 () [0x00000] in /Users/builder/jenkins/workspace/xamarin-macios-pr-builder/external/Touch.Unit/NUnitLite/TouchRunner/TouchRunner.cs:685 
	  at Foundation.NSAsyncActionDispatcher.Apply () [0x00000] in /Library/Frameworks/Xamarin.iOS.framework/Versions/11.11.0.17/src/Xamarin.iOS/Foundation/NSAction.cs:125 

https://jenkins.mono-project.com/job/xamarin-macios-pr-builder/6442/Test_Report/

that bump'ing back solved

[lewurm]

I forgot to bump Touch.Unit

[monojenkins]

Build failure

[spouliot]

issues are unrelated -> https://github.com/xamarin/maccore/issues/647
RE is aware