Merge pull request #508 from gumme/WpfDesignerSnaplineMergeFix

Fixed bug where resizing right and bottom edges on controls did not snap properly.
Fix #506: Tabs/spaces not shown in text editor for C# files
Fix ReflectionTypeLoadException in WPF designer.

The Xceed.Wpf.Toolkit.dll file needed by the WPF designer was not
included in the installer.
Merge pull request #510 from gumme/WpfDesignerStackPanelChange

StackPanel no longer removes properties that are used in the panel.
Merge pull request #509 from gumme/WpfDesignerPrecisionChange

Modified precision for element positioning and boundaries to use 0 decimals.
fix #498: Additional problems in DebuggerDotCompletion
fix #460: Debugger console: No completion inside constructors
Protect against resolve call on empty location.
Fix inverted condition.
Handle BadImageFormatException in ProjectContentContainer.DoResolveReferences()
Disable UseOfMemberOfNullReference issue. It's currently too unstable and performance-hungry.
Handle UnauthorizedAccessException in AbstractProject.IsReadOnly
Fix NullReferenceException in SharpTreeViewItem.ContextMenuOpening
Fix NullReferenceException in Git.FindGit if PATH is not set.
Fix NullReferenceException in TestResultsReader.Dispose when connecting the named pipe failed.
Use ReaderWriterLock in ParserServiceEntry to prevent the parser thread from blocking the UI thread.
Adjust StressTest to SD5 API change
Fix #511: Automatic code formatting grabs closing curly brackets when adding properties
Merge remote-tracking branch 'upstream/master'