* Makefile.am: * MonoDevelop.Debugger.csproj: Reference the mono-cairo package.
* Makefile.am:
* MonoDevelop.Debugger.csproj: Reference the mono-cairo package.

* MonoDevelop.Debugger/Initializer.cs:
* MonoDevelop.Debugger/DebuggingService.cs: Properly check debugger
  features while in a debug session.

* MonoDevelop.Debugger/ThreadsPad.cs: Improve error handling.

svn path=/trunk/monodevelop/; revision=145043

Unity-Technologies/debugger-libs,mono/debugger-libs,mono/debugger-libs,joj/debugger-libs,Unity-Technologies/debugger-libs,joj/debugger-libs