bump version for bugfix

new version

version 0.6.3

bump version to re-upload on pypi

increase version

rename TimelockScript, update README

version 0.5.1, fixes #38

bump version directly to 0.5 to align with next tag for API-breaking …

…changes, fixes #34

Merge branch 'constants-segregation', fix #27, close #25, close #18

version 0.3.3