Release v5.1.0

Added

• launchId option to the config to attach run results to an existing launch. Related to parallel execution on one and several machines.
• Browser parameter for steps.
• Logging link to the launch on its finish now available by default via @reportportal/client-javascript.

Fixed

• Reporter breaks on skipped test for WebdriverIO + Mocha. Addressed #46.
• Fix error with launch finishing. Addressed #53 and #47. Thanks to AlexGalichenko.

Changed

• token configuration option was renamed to apiKey to maintain common convention.
• @reportportal/client-javascript bumped to version 5.1.1.
• Readme file updated.