Release 0.3.1

=============

Enhancements
~~~~~~~~~~~~

* added helper UARTService::writeString() to simplify writing of strings.

Bugfixes
~~~~~~~~

none.

services/UARTService.h

@@ -127,6 +127,15 @@ public:
         return origLength;
     }
 
+    /**
+     * Helper function to write out strings.
+     * @param  str The received string.
+     * @return     Amount of characters appended to the rxCharacteristic.
+     */
+    size_t writeString(const char *str) {
+        return write(str, strlen(str));
+    }
+
     /**
      * Override for Stream::_putc()
      * @param  c