v2.0.0: Merge pull request #17 from dbradf/v2

• Format synthetics.json file to make it human readable
• Add Developer documentation
• Add Contribution guide
• Add ability to update alerting
• Add command to get available locations
• Add ability to update synthetics configuration
• Add support for non-SCRIPTED_BROWSER synthetics
• Better handling of New Relic errors

v1.0.1: Merge pull request #6 from dbradf/master

• Updated README
• Added CHANGELOG