release new version

release new version

release new version

publish version 18.1.6

bugfix: division by zero if only width or only height specified

switch back to pillow due to user complains

switch back to pillow due to user complains
and their inability of using the search function

fix python3.5.6 compatibility

bugfix: prevent crash if the window is bigger than the screen

bugfix: bash library wasn't packagable

use Semantic Versioning, new release

See: https://semver.org/