Release v1.2.15

New targets:
 - VBLUno51
 - NUCLEO_L496ZG
 - SILICA_SENSOR_NODE
 - EV_COG_AD3029LZ
 - EV_COG_AD4050LZ
 - NUCLEO_L452RE

Fixes:
 - Python 3.5 and 3.6 compatibility
 - Correct detection of devices without mbed.htm
   - Corrects detection of microbit on windows

setup.py

@@ -34,7 +34,7 @@ def read(fname):
     return open(os.path.join(os.path.dirname(__file__), fname), encoding="utf8").read()
 
 setup(name='mbed-ls',
-      version='1.2.14',
+      version='1.2.15',
       description=DESCRIPTION,
       long_description=read('README.md'),
       author=OWNER_NAMES,