various compiler warning fixes
Fix a rare crash

Fix a crash when a special type of JSON object is received instead of the usual visibility
 change annotation when performing a delete operation. An example of the object:

{
    collections =     (
        10726472
    );
    messageId = "051d17a631d943f58705e4ad974f4131@livefyre.com";
}
Merge pull request #74 from Livefyre/dev

Fixes