Updated bossac to 1.6.1-arduino

CHANGELOG

@@ -10,6 +10,7 @@ SAMD CORE 1.6.2 2015.11.03
 * Wire: allow scanning bus via beginTransmission-endTransmission
 * USB Device: big refactoring and bug fix
 * USB Device: added PluggableUSB interface
+* updated bossac to version 1.6.1-arduino
 
 SAMD CORE 1.6.1 2015.07.21
 

platform.txt

@@ -109,7 +109,7 @@ recipe.size.regex=\.text\s+([0-9]+).*
 #
 # BOSSA
 #
-tools.bossac.path={runtime.tools.bossac-1.6-arduino.path}
+tools.bossac.path={runtime.tools.bossac-1.6.1-arduino.path}
 tools.bossac.cmd=bossac
 tools.bossac.cmd.windows=bossac.exe