Don't show unhandled exception details

When there is an unhandled exception don't show the exception details.
Only show the error dialog if crash reporting is not enabled, or if the
exception will terminate the IDE.
Remove all calls to ShowException

We use ShowError instead.
Updated reference to fsharpbinding
Fixed 'Bug 24439 - Categories does not display in autocompletion drop
down window i.e. Project Resources, Framework Resources etc.'.
Revert "Updated reference to fsharpbinding"

This reverts commit c56b8ef6d9b14ecd8dcfc67b5a7ee7e14d189326.
bumped md-addins
[Ide] Implemented better fix for the wrong android designer command
routing.
[SourceEditor] Fixed scrollbar commands.
Updated reference to md-addins
Updated reference to fsharpbinding
Updated reference to mono-addins
Updated reference to fsharpbinding
Updated reference to fsharpbinding
Fixed 'Bug 24699 - Fold Regions By Default - Not Folding... (5.5.3) '.
There is a conflict between the expected behavior what should happen
when reopening the files. Thinking about it preserving the fold states
can be regarded as a bug. It didn't work 100% anyways therefore
disableing that is the better resolution.
OptionsDialog: do not NRE if CreatePanelWidget returns null
CombineMSBuildOptions: return null if MSBuild is required

If MSBuild is required for a project, previously the panel
widget would be an empty GTK Box. This caused two horizontal
lines in the UI to be displayed on top of each other that
would separate the panels, presumably because returning
null previously caused an NRE. The NRE is fixed, so return
null for a nicer UI.
Merge pull request #670 from mono/pr-abock-null-panel-widgets

Allow panel widgets to be null, fix ugly MSBuild build engine UI when MSBuild is required
Fixed 'Bug 24735 - C# string property in object initializer
autocompletes to #if""'
[T4] Fix Initialize visibility. Fixes #24659.

Otherwise this happens:

/var/folders/_n/1849dyl138g79qwz2fr8h74m0000gn/T/6a2cf289/1fe4247d.0.cs(944,33): ERROR `Microsoft.VisualStudio.TextTemplating.GeneratedTextTransformation4bc89c69.Initialize()': cannot change access modifiers when overriding `public' inherited member `Microsoft.VisualStudio.TextTemplating.TextTransformation.Initialize()'
(0,0): ERROR /Applications/Xamarin Studio.app/Contents/Resources/lib/monodevelop/AddIns/MonoDevelop.TextTemplating/Mono.TextTemplating.dll (Location of the symbol related to previous error)

https://bugzilla.xamarin.com/show_bug.cgi?id=24659
[T4] Add unit test for #24659 and fix existing unit tests.