sh not bash
Work in Progress: interface-refactor.
Fixes #33
Dubious flipping.
Add Rect clipping tests, first working version of page_to_tables
Add TableContainer.__iter__
Tweaks to Table class
Invert coordinate system (xref #47)
Box.clip now supports multiple parameters
Fixed flipped row_edges / column_edges in Table class
Make lt_page private
Switch to zero-based indexing for get_page (get_page_by_label can come later)
Fix remaining coordinate system issues
Merge pull request #55 from scraperwiki/issue-50

Progress for #50 (interface refactoring)