Bunch of updates

Hi!

I updated this project as part of a quick evaluation I had to do for a RESTful project.

Here is a quick overview of the changes:

1. I updated all the libraries to the latest I could find.
2. I added JSON.smart to the list of parsers.
3. I removed any object creation from the main test loops to avoid the GC from firing as often.
4. I tidied the result format and added per-run timings
5. Moved the json file from the class tree into the android assets.

Here is a screenshot:
![screenshot](https://github.com/alt236/json-android-compare/raw/master/screenshots/android_json_compare_1.png)

Alex