Updates removing deprecated features and fixing return values

• SAZ-272 fixing test scripts for publish 8c93c0e
• SAZ-272 grammar d419532
• updated README.md to remove reference to DOCUMENTATION.md 8faa470
• updated .npmignore to ignore github and husky specific files 7d6ede3
• SAZ-272 added LTS schedule and updated docs 4ef9bfc
• SAZ-272 removed deprecated function and updated travis config to test in newer versions of nodejs 967fbe9

v1.3.0...v2.0.0