bump development version
fix #12: provide vertical and horizontal blockop
fix buggy __contains__
blocks should be a flattened list for blockdiag
add nested and flattened list safeguards to all op
blockhoiz. and blockvert. are non-symmetrical
add test suite for block operators
correct typo in test suite
fix #13: restore support for custom logger in blkop
fix #11: add list of contributors to linop
split doc to multiple files to ease future edits
update documentation with changes from 0.3 and 0.4
revise paragraph on convenience functions
fix #14: cleaner setup script, support setuptools
fix #6: add aslinearoperator convenience function
change test in MatrixOperator
fix #16: MatrixOperator figures out if symmetric
add missing init test for DiagonalOperator
pep8
remove unrecognized "note" section