Support generating JavaScript output in one file.

Add new project option where the single output JavaScript file can be
defined.
Support generating JavaScript output into custom directory.

Add new project option for defining the output directory for the
generated JavaScript files.
Merge branch 'master' into monodevelop

Conflicts:
	src/TypeScriptBinding.Tests/TypeScriptBinding.Tests.csproj
	src/TypeScriptBinding/CompileTypeScriptFilesOnBuildAction.cs
	src/TypeScriptBinding/CompileTypeScriptOnSaveFileAction.cs
	src/TypeScriptBinding/TypeScriptProjectOptionsPanel.xaml
	src/TypeScriptBinding/TypeScriptProjectOptionsPanel.xaml.cs
Remove unused references.
Port project options over to GTK#.

New project options for output file generation:

Output file
Output directory.