Release the tempSharer as soon as you assign it to the property, otherwise, like in the case where the sharer isn't authorized, the method will return and the tempSharer will never get released.
Ok so I just deleted the line where it was value is never read and that got rid of that warning. So now only 2 left which I explained in my post above.
This includes most of the warnings and leaks fixed. It also has some improvements like Speed because of those fixes, etc... Keep in mind, there are still lots of bugs though. There is a added SMS Functionality in it, but it does not working properly just yet. If one of the commenters puts out some fixes for the community ill update the post there. So keep checking back!
Also the reason why I made my own ShareKit beta is because the developer got lazy and decided not to update it anymore. I even emailed him/tweeted him with no response. :/