Initial Commit - Copy from Altus Metrum AltOS

doc/release-notes-1.6.4.inc

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+= Release Notes for Version 1.6.4
+include::release-head.adoc[]
+:doctype: article
+
+	Version 1.6.4 fixes a bluetooth communication problem with
+	TeleBT v1.0 devices, along with some altosui and altosdroid
+	minor nits. It also now ships firmware for some newer devices.
+
+	== AltOS
+
+	AltOS fixes:
+
+	* Fix hardware flow control on TeleBT v1.0. Hardware RTS/CTS
+	  doesn't seem to work, switch from using the hardware to
+	  driving these pins with software.
+
+	* Fix ARM USB drivers to deal with OS restarts. Needed to
+	  reset all USB-related state when the USB bus is reset. These
+	  fixes affect all STM32L, STM32F0 and LPC11U14 based devices.
+
+	== AltosUI, TeleGPS and AltosDroid Applications
+
+	AltosUI, TeleGPS and AltosDroid New Features:
+
+	* Automatically switch from meters or feet to kilometers or
+          miles for distance units.
+
+	* Add Monitor Idle mode to TeleGPS application.
+
+	AltosUI, TeleGPS and AltosDroid Fixes:
+
+	* Abort map preloading when the preload map dialog is closed.
+
+	* In AltosDroid, Don't reconnect to last device if the user
+          had disconnected it the last time the application was
+          active.
+
+	== Documentation
+
+	* Mention TeleMega v2.0 in hardware specs table.
+
+	* Document TeleGPS RF output in telegps manual.