Added additional documentation to checkLOA to mention the specific case

when a user requires a Wiscard and one is not provided.

Updated .gitignore to ignore Mac OSX .DS_Store files.

.gitignore

@@ -18,4 +18,6 @@
 /src/main/resources/*.pem
 
 /src/test/resources/pemtest.pem
-/src/test/resources/integration-test-data.ini
\ No newline at end of file
+/src/test/resources/integration-test-data.ini
+
+.DS_Store
\ No newline at end of file

src/main/edu/wisc/doit/RpcNetidClient.php

@@ -101,7 +101,10 @@ interface RpcNetidClient {
 	 * <p>The method returns a {@link RpcNetidStructValidationResponse} object. If 
 	 * {@link RpcNetidStructValidationResponse::getIsValid} returns true, the identity is verified.
 	 * Otherwise, it will return false with zero or more reasons returned by
-	 * {@link RpcNetidStructValidationResponse::getReasons}
+	 * {@link RpcNetidStructValidationResponse::getReasons}</p>
+	 * 
+	 * <p>If the user requires a Wiscard and one was not provided, the method will return a {@link RpcNetidStructValidationResponse}
+	 * object with {@link RpcNetidStructValidationResponse::REASON_NEEDS_WISCARD} as one of the reasons in the array.</p>
 	 * 
 	 * @param string $uid  user's NetID
 	 * @param \DateTime $birthdate  user's date of birth