v1.3.0

• Export tests with embedded tests unflattened. (0ed4c62,
  @epaulet)
• Add option to save API token in environment rather than specifying in commands.
  (eaa32e8, @valeriangalliat)
• Fixed a bug where tests would upload without the correct source attribute if
  an upload command failed in the middle of executing. (92df146,
  @epaulet)
• Specify app source url as a command line option. (d02f750,
  @ukd1)
• Add support for redirect flag on steps and embedded test. (e54a3f7,
  @epaulet)
• Add support for site_id attribute in RFML test and add sites command for
  site ID reference. (7b628b1, @epaulet)
• Add support for exporting specified tests using test IDs found on dashboard.
  (69d104d, @ziahamza)