Fixes #43

Patches #34 issue resolution to define `port` if it
wasn't previously set
Fixes #44

Missed the necessary refactoring after the improvements from PR #38
Closes #41 by adding the MIT License
document bug fixes and pull requests
Version bump to 1.3.4
Fixes issues caused by recent refactorings from v1.3.3

Merge branch 'release/v1.3.4' into develop