Changed to use get_component_instance rather than get_port.
Fixed unit tests for events.
Changed set_grid_values to flatten arrays.
Added better error messages.
Added package-level setup for component classes.
Added new services functions.

Added
-----
* New functions:
  - del_component_instance
  - del_component_instances
  - get_component_instance_names
Fixed failing unit tests.
Fixed failing doctests; Added del_services function.
Fixed failing unit tests.

Fixed
----
* Fixed unit tests for TimeLine class to reflect the change to
  FIFO popping of events.
Removed unused files from repository.
Changed to delete services before setting up tests.
Added new Sphinx rst files for module documentation.
Fixed doctest for names_with_prefix function.
Changed to PEP8-styling.
Changed nosetests defaults.