Added a position field to Column class.
Speculative work on new API.
Included encoded_elements into random tests.
Reenabled C based element parsing.
Fixed bug,
Variable progress update rates based on file size.
Added new write API and Column class.
Fixed insert_encoded_elements char bugs.
IndexCounter class and initial Cursor classes.
Added hex encoding of float string in tests.
Added TableRowIterator and test cases.
Fixed python 2 issue with long integers.
Experimental memory minimisation for indexes
Fixed python 2 testing bug.
Fixed old python 2 test problem.
Backed out of index row_buffer change.
Merge branch '0.1-dev' of github.com:jeromekelleher/wormtable into 0.1-dev
Added cursors and min/max for index.
Initial addition of high-level test module.
New test cleanup code and initial Database class.