Path sync

#Features:#
- Sync two path's folders and files
- Support ignore file or folder list. It could be config by the config.cfg file.
- Automatic ignore the same file both in source and destination
- Automatic create destination folder
- Support command line
path_sync src dst

#Development environment:#
- Visual Studio 2010 with plug-in pydev or any other compatible IDE could event be simple text editor such as notepad
- Python version is 2.7.3
- Py2exe is used to compile the python script into exe format