Some plugins for the caja file manager.

- `copyfilename.py`  – adds an content menu to copy the full path of a selected file
- `symlink.py` – Provides several improvements to work with symbolic links
	- Adds an option to display the real filepath of a file
	- Adds an option to open a new caja window at the target directory
	- Adds an statusbar indicating when the current directory is (inside of) a symlink.
- `hashsum-property-page.py` – Show different hashsums on a file property page