v1.4.0

Changelog

2b2973e Add go modules Update go version to 1.15
1a0eb2d Adjust build pipeline
42fecfc Fix panic when authentication failed Bump version
4f2c104 Improve error handling Re-implement FitFile creation closes #7 Change cli parameters Update readme
c8e72ef Merge remote-tracking branch 'origin/master'
1009683 Remove Github actions