[PHANTOM I & PHANTOM II] Release notes - DOS 2.16.1

[PHANTOM I & PHANTOM II] Release notes - DOS 2.16.1

This release includes the following improvements, compared to DOS 2.14.4:

• Improved sound tuning on Phantom II
• Fixed an EQ related issue on Phantom I
• Improved stereo pairs stability when using AirPlay
• Fixed a rare issue with the night mode turning off by itself
• Improved optical input stability
• Extended HTTP API with additional commands (more details here)
• Fixed HTTP API issues related to Arch and Dialog
• Other bug fixes and improvements