
Write pack and unpack method which return 8 times larger buffer.
- Make example which shows interaction with numpy.

Reimplement more methods in C.
- in particular fromfile, pop, index

Implement bitwise operators.

Think about a search method which lets you search for sequences?
- could also be used for, e.g.  bitarray('01') in bitarray('1111001101')

Refactor huffman example, everything should be in one file.

Test against Python 2.6

