Fix incorrect regular expression for checking the time format (#9)

Author: cheton

src/TimeInput/lib/validate.js

@@ -1,3 +1,3 @@
 module.exports = function validate(val) {
-    return /^[0-2][0-9]:[0-5][0-9](:[0-5][0-9](:[0-9][0-9][0-9])?)?(\s+[ap]m)?$/i.test(val);
+    return /^([0-9]|0[0-9]|1[0-9]|2[0-3]):[0-5][0-9](:[0-5][0-9](:[0-9][0-9][0-9])?)?(\s+[ap]m)?$/i.test(val);
 };