changes

ini:
- update ftp lib to 0.9.5
- remove all board configs

config:
- add ntp server seetting
- add board config

code:
- add board finder
- NO_GLOBAL_INSTANCES
- ntp server config
- modem config update (not found bugs fixed)

libs:
- update common lib
- update ntp lib

data/is-cfg.json

@@ -53,5 +53,6 @@
 		"user": [
 			{ "name":"ftp", "password":"ftp" }
 		]
-	}
+	},
+	"ntp_server": "pool.ntp.org"
 }