Enhancement - Path, File, Directory integration

- Replaced all access calls.
- Replaced all stat calls.
- Obsoleted util.cpp isAbsoluteDirectory calls.
- Obsoleted util.cpp expandPath calls.

src/util.h

@@ -60,8 +60,6 @@ std::string formatSecondsCompact (time_t);
 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