Feature - #352 rc file should support includes

- Added include file support to Config.cpp.
- Implemented isAbsolutePath helper.
- Added unit tests for isAbsolutePath.
- Fixed small bug in bug.bulk.t.
- Added TODO items to config.t.cpp.

src/util.h

@@ -61,6 +61,7 @@ std::string formatBytes (size_t);
 int autoComplete (const std::string&, const std::vector<std::string>&, std::vector<std::string>&);
 const std::string uuid ();
 std::string expandPath (const std::string&);
+bool isAbsolutePath (const std::string&);
 
 #ifdef SOLARIS
   #define LOCK_SH 1