Paragrep

- Removed setup.py dependency on ez_setup.
- Changed to refer to 'grizzled-python', instead of 'grizzled'

- Updated to latest version of ez_setup.py
- Adjusted license to new BSD license.
- Changed URL to new GitHub URL.

- Now reads lines from the files in a more memory-efficient manner.
- Fixed problem with compilation of regexps.

- Version (--version) option is now handled by the option parser.
- Removed left-over camel case variable names.
- Fixed -i (case-blind) matching, which wasn't working.

- Changed epydoc markup to use reStructuredText.
- Now properly matches anchored regular expressions (e.g., "^foo") against
individual lines, rather than the entire paragraph as a whole.
- Added --version option.
- Now properly bundles ez_setup.py

- Updated to correspond to changes in the dependent Grizzled API.