Add ToDo (check for gc3pie config).
Add ToDo (check for exceptions on job dispatching).
Use different loglevels for messages.
Add ToDo (add verbosity argument to adjust logging).
Log messages on job dispatching.

refs #133
Add note about the config used for the gc3 engine.

refs #122, #123
Add ToDo (cmdline parameter for gc3 config).

refs #254
Add commandline parameter to specify gc3pie config file.

fixes #254
Add simple gc3pie config file.

refs #122, #123
Add cmdline parameter to set loglevel.

fixes #255
refs #129
Fix wrong variable reference.

refs #129
Whitespace only.
Minor changes in log messages.

refs #129
Improve constructor documentation.

refs #129
Fix bug introduced when inheriting from "dict" instead of "object".

Back then the __getitem__() and __setitem__() methods were disabled sind a "dict" already has them, but instead of using the dict structure to store key-value pairs itself, an additional dict was created inside of it. Therefore, accessing the outer dict would not do anything.

refs #129
The GC3Pie job controller does not need to be a hidden file.