Enhancement

- Added Path::is_absolute, and corresponding unit tests.
- Replaced expandPath and isAbsolutePath call in Config.cpp.

src/Path.cpp

@@ -121,6 +121,15 @@ bool Path::is_directory () const
   return false;
 }
 
+////////////////////////////////////////////////////////////////////////////////
+bool Path::is_absolute () const
+{
+  if (data.length () && data.substr (0, 1) == "/")
+    return true;
+
+  return false;
+}
+
 ////////////////////////////////////////////////////////////////////////////////
 bool Path::readable () const
 {