Updated libraries metadata

(Filtered from arduino/Arduino@07d9d55)

Author: cmaglie

library.properties

@@ -1,11 +1,10 @@
-
 name=SPI
 author=cmaglie
 email=Cristian Maglie <[email protected]>
-sentence=With this library you can use the SPI interface of your Arduino board.
+sentence=Handle communications through SPI bus
 paragraph=This library implements the standard function available for the SPI bus.
 url=http://arduino.cc/en/Reference/SPI
-architectures=avr, sam
+architectures=avr,sam
 version=1.0
-dependencies= none
+dependencies=
 core-dependencies=arduino (>=1.5.0)