Updated bundled AVR core to 1.6.19

Author: cmaglie

Diff for: hardware/arduino/avr/platform.txt

@@ -6,7 +6,7 @@
 # https://github.com/arduino/Arduino/wiki/Arduino-IDE-1.5-3rd-party-Hardware-specification
 
 name=Arduino AVR Boards
-version=1.6.18
+version=1.6.19
 
 # AVR compile variables
 # ---------------------
@@ -127,4 +127,4 @@ tools.avrdude.upload.network_pattern="{network_cmd}" -address {serial.port} -por
 # Default blank usb manufacturer will be filled in at compile time
 # - from numeric vendor ID, set to Unknown otherwise
 build.usb_manufacturer="Unknown"
-build.usb_flags=-DUSB_VID={build.vid} -DUSB_PID={build.pid} '-DUSB_MANUFACTURER={build.usb_manufacturer}' '-DUSB_PRODUCT={build.usb_product}'
+build.usb_flags=-DUSB_VID={build.vid} -DUSB_PID={build.pid} '-DUSB_MANUFACTURER={build.usb_manufacturer}' '-DUSB_PRODUCT={build.usb_product}'

Diff for: hardware/package_index_bundled.json

@@ -12,15 +12,15 @@
         {
           "name": "Arduino AVR Boards",
           "architecture": "avr",
-          "version": "1.6.18",
+          "version": "1.6.19",
           "category": "Arduino",
           "help": {
             "online": "http://www.arduino.cc/en/Reference/HomePage"
           },
-          "url": "http://downloads.arduino.cc/cores/avr-1.6.18.tar.bz2",
-          "archiveFileName": "avr-1.6.18.tar.bz2",
-          "checksum": "SHA-256:7c56e381602b779e8e81ec46deb5c8b82e1c84c134c3c1b672d0b43f5e45ee13",
-          "size": "4897659",
+          "url": "http://downloads.arduino.cc/cores/avr-1.6.19.tar.bz2",
+          "archiveFileName": "avr-1.6.19.tar.bz2",
+          "checksum": "SHA-256:",
+          "size": "",
           "boards": [
             {"name": "Arduino Yún"},
             {"name": "Arduino/Genuino Uno"},