Updating samd 1.3.1 archive and link in package manager.

Author: Jim Lindblom

IDE_Board_Manager/package_sparkfun_index.json

@@ -163,8 +163,8 @@
                "category":"Contributed",
                "url":"https://github.com/sparkfun/Arduino_Boards/raw/master/IDE_Board_Manager/sparkfun-samd-1.3.1.tar.bz2",
                "archiveFileName":"sparkfun-samd-1.3.1.tar.bz2",
-               "checksum":"SHA-256:e4fc2642672b6b28935ce1ea5df07adecdb82e050a048d8b375269c63dd12a47",
-               "size":"196626",
+               "checksum":"SHA-256:5e5523c5c86bcaa3827dc2737b4d2cc82a66c7b676e444384ede25fa46031e0d",
+               "size":"204901",
                "help":{
                   "online":"https://forums.sparkfun.com"
                },