support Directory Reference

Directory dependency graph for support:

Files
	Bracket.cpp
	Bracket.h
	Cancellation.cpp
	Cancellation.h
	Context.cpp
	Context.h
	DirectiveTree.cpp
	DirectiveTree.h
	FileCache.cpp
	FileCache.h
	Function.h
	Lex.cpp
	Logger.cpp
	Logger.h
	Markup.cpp
	Markup.h
	MemoryTree.cpp
	MemoryTree.h
	Path.cpp
	Path.h
	Shutdown.cpp
	Shutdown.h
	ThreadCrashReporter.cpp
	ThreadCrashReporter.h
	Threading.cpp
	Threading.h
	ThreadsafeFS.cpp
	ThreadsafeFS.h
	Token.cpp
	Token.h
	Trace.cpp
	Trace.h