Change hasReturnValue to isSynch to be more accurate about purpose of method.

framework/src/com/phonegap/CryptoHandler.java

@@ -65,12 +65,12 @@ public class CryptoHandler implements Plugin {
 	}
 
 	/**
-	 * Identifies if action to be executed returns a value.
+	 * Identifies if action to be executed returns a value and should be run synchronously.
 	 * 
 	 * @param action	The action to execute
 	 * @return			T=returns value
 	 */
-	public boolean hasReturnValue(String action) {
+	public boolean isSynch(String action) {
 		return false;
 	}