Release 1.0.3

Changes since 1.0.2:

• 0ff0b62 bumo version
• 9f96731 update dependencies
• 80c95fe add umami script to docs
• 54a7302 update codestyle according to updated linter rules
• a0bb180 improve linter rules; get rid of tslint
• 96954fa fix license year
• 3764bce remove double whitespace from workflow file
• 5bed669 update docs