make build tools executable for unix systems
add unix build script
remove obsolete build script

Conflicts:
	mono_build.sh
Removing obsolete tests
Fixing some of the path issues which break the mono build.
Fixing some of the path issues which break the mono build.
Adding a new AssemblyInfo creation task
Added tracing to the new AssemblyInfo creation task
Fixing some of the path issues which break the mono build.
Fixing some of the path issues which break the mono build.
Fixing some of the path issues which break the mono build.
Fixing some of the path issues which break the mono build.
Removing issues which break the mono build.
Better tracing in nuget helper
Fixing working dirs in the nuget helper
Fixing working dirs in the nuget helper
Making the old AssemblyInfo task obsolete
Fixing working dirs in the nuget helper
Trace nuspec file creation
Trace nuspec file creation