1.1.0

• Replaced Travis CI with GitHub CI
• Added .npmignore file
• Updated node version
• Improved documentation in README
• Added generateBSN function
• Added parameter in elfproef function to enable/disable positive sum check
• Fixed validation errors (see #1)
• Added additional tests for certain edge cases, generateBSN function, and a long test to loop through all numbers in BSN range and check if the total amount of valid BSNs is 90 million.
• Bumped some dependencies