Merge pull request #31 from per1234/standardize-maintainer

Use standardized `maintainer` metadata property value

Author: per1234

library.properties

@@ -1,7 +1,7 @@
 name=Arduino_Opta_Blueprint
 version=0.2.6
 author=Daniele Aimo ([email protected])
-maintainer=Daniele Aimo (d.aimo@arduino.cc)
+maintainer=Arduino <info@arduino.cc>
 sentence=Library used to connect OPTA and OPTA Expansion Modules on I2C / UART 
 paragraph=This library discover the presence of different Expansions (for example OPTA Digital) present on the I2C bus, automatically assing addresses to them and allow to control their Input/Output from the Opta Controller.
 category=Communication