increase version & add changelog for release

Author: hathach

changelog.md

@@ -1,5 +1,27 @@
 # Adafruit nRF52 Arduino Core Changelog
 
+## 0.15.0 - 2019.12.30
+
+### Core
+
+- Add Clue variant
+- Clean up warnings, thanks to @henrygab
+- Enhance Software Timer
+
+### BLE
+ 
+- Increase sd attribute table size from 0x800 to 0xC00, increase linker memory for SD 840 from 3400 to 6000
+- Add Adafruit BLE Service library (used by Circuit Playground Bluefruit App): Temperature, Addressable Pixel, Accel, Button
+  - Add `cplay_ble.ino` example sketch
+- Change BLEUuid begin's return type to bool
+- BLECharacteristic allow user to set buffer
+
+### USB
+
+- Moved TinyUSB core into submodule at https://github.com/adafruit/Adafruit_TinyUSB_ArduinoCore
+- Added USBD detach/attach API
+- Synced TinyUSB with upstream
+
 ## 0.14.6 - 2019.10.30
 
 - Added power switch pin for Circuit Playground Bluefruit

libraries/Bluefruit52Lib/library.properties

@@ -1,5 +1,5 @@
 name=Adafruit Bluefruit nRF52 Libraries
-version=0.14.6
+version=0.15.0
 author=Adafruit
 maintainer=Adafruit <[email protected]>
 sentence=Arduino library for nRF52-based Adafruit Bluefruit LE modules

platform.txt

@@ -17,7 +17,7 @@
 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 
 name=Adafruit nRF52 Boards
-version=0.14.6
+version=0.15.0
 
 # Compile variables
 # -----------------