Rename release notes

Author: terrillmoore

doc/IBM-release-notes.txt

@@ -0,0 +1,38 @@
+==============================================================================
+LMIC VERSION 1.6  (13-July-2015)
+---------------------------------
+
+ - License changed to BSD
+ - Modem included, see LMiC-Modem.pdf and examples/modem
+ - Additional stm32 hardware and Blipper board specific peripheral code
+
+
+==============================================================================
+LMIC VERSION 1.5  (8-May-2015)
+------------------------------
+
+ - fixed condition in convFreq()
+
+ - fixed freq*100 bug and freq==0 bug for CFList
+
+ - fixed TX scheduling bug
+
+ - better support for GNU compiler toolchain
+
+
+==============================================================================
+LMIC VERSION 1.4  (17-Mar-2015)
+-------------------------------
+
+ - changed API: inverted port indicator flag in LMIC.txrxFlags
+   (now TXRX_PORT, previously TXRX_NOPORT)
+
+ - fixed offset OFF_CFLIST constant
+
+ - changed CRC-16 algorithm for beacons to CCITT(XMODEM) polynomial
+
+ - fixed radio driver (low data rate optimization for SF11+SF12 only for BW125)
+
+ - fixed timer rollover handling in job queue
+
+==============================================================================