Fixed compilation error

Fixed compilation error with strict compilers.

Author: Skylion007

src/main/java/com/darkprograms/speech/translator/GoogleTranslate.java

@@ -214,7 +214,7 @@ private static boolean containsLettersOnly(String text){
 	/** 
 	 * This function generates the int array for translation acting as the seed for the hashing algorithm.
 	 */
-	private int[] TKK() {
+	private static int[] TKK() {
 		int[] tkk = { 0x6337E, 0x217A58DC + 0x5AF91132};
 		return tkk;
 	}