* list-projects lists all the projects in the repo.
* list-contexts lists all the context in the repo.
* Created a bash completion script to allow auto-complete for GTD.
The `rename-project` command will rename a project and update all of the action
items associated with that project.
* Fills in some missing information in the online help.
* Fixes a bug in the finGtdRootDir function. It was not properly handling
relative paths.
* Fixes a bug where the reconfigure command was referring to the wrong
configuration file.
Joanthan Bernard