Merge pull request #77 from bocops/master

declare exception throwing in constructor

Author: drinckes

java/com/google/openlocationcode/OpenLocationCode.java

@@ -152,7 +152,7 @@ public double getEastLongitude() {
    * @throws IlegalArgumentException when the passed code is not valid.
    * @constructor
   */
-  public OpenLocationCode(String code) {
+  public OpenLocationCode(String code) throws IllegalArgumentException {
     if (!isValidCode(code.toUpperCase())) {
       throw new IllegalArgumentException(
           "The provided code '" + code + "' is not a valid Open Location Code.");