relax SVN archive

Adding an observer for current working directory.

Changing to a filedialog for the userfunction system.cd()

Adding af verbose flag to lib.system.pwd() function.

Adding a toolbar button for changing the current working direxctory.

Storing the current working directory as a GUI variable.

Adding a verbose True/False for the lib.system.pwd() function.

Adding a menu item for changing the current working directory.

Adding a relax gui menu for changing the current working directory.

Adding new 16x16 px and 200px of the oxygen icon folder-development.

This icon is used for displaying the current working directory.

Adding a new user function sys,tem.pwd() to print/display the current working directory.