Is it possible to change the library to use JPA server persistence

[chungyan5]

hi all 

Originally, mobile-objects uses objectify-appengine as server side persistence, it depends Google App. Engine. 

I have some code changing from objectify-appengine to JPA using EclipseLink and SQLite, but specific to my own code, not generic library. If anyone has interest, i will share or if possible, commit to this project as well to let anyone to improve the code.