Api: added setter/getter for header Accept

Author: dg

src/Github/Api.php

@@ -73,6 +73,26 @@ public function getDefaultParameters()
 	}
 
 
+	/**
+	 * @param  string
+	 * @return self
+	 */
+	public function setDefaultAccept($accept)
+	{
+		$this->defaultAccept = $accept;
+		return $this;
+	}
+
+
+	/**
+	 * @return string
+	 */
+	public function getDefaultAccept()
+	{
+		return $this->defaultAccept;
+	}
+
+
 	/**
 	 * @see createRequest()
 	 * @see request()