Android app bug fix & tablet ready

I need a smart expert individual, confidential and clean coder to do few things for us on a just released app: 1 - Clean two main code areas of an app we have so that its easy to spot bugs. (It seems its clumsy from working through several coders that develop it) 2 - Fix/Find a bug that its causing the app to crash when update/saving data to MySQL. 3.- Integrate tablet interface to use it on horizontal devices like HP 21 Slate, an Android TV box, etc. 4.- To make a little modification on the "Order" area. The final project code should be supplied with a zip aligned release ready for Google Play. If the coder is superb, a few other projects might be assigned to. I will support in as much as I can to test debug. PLEASE DO NOT BID WITHOUT UNDERSTANDING THE REQUIREMENTS OR HAVING ENOUGH EXPERTISE TO COMPLETE THE ABOVE TASKS. Coder MUST agree not to keep or share the code as part of the contract. To see the current app go to: [login to view URL]