Implemented figures support for the CLI.

Squashed commit of the following:

commit d5c05092bad9ea47510a119554b4708fcd8bce69
Author: Eric Kim <erickim555@gmail.com>
Date:   Fri Jul 12 00:34:28 2013 -0700

    Added two Figure test files.
    Modified .gitignore to ignore temp files.

commit e22b6221513d6878d1cba61b527ed60f6f8a2211
Author: Eric Kim <erickim555@gmail.com>
Date:   Fri Jul 12 00:32:09 2013 -0700

    The CLI interface now supports figure inputs.

commit 7e6431addbcb447dfea6c4831872de7b55045633
Author: Eric Kim <erickim555@gmail.com>
Date:   Thu Jul 11 21:42:42 2013 -0700

    Implemented the parse_figures function for the CLI interface.