- SharedPreferences native classe implemented
- SharedPreferences.Editor native class implemented
- Began definition of SharedPreferences class
Merge branch 'ffi-refactor' of https://github.com/xymus/nit into app.nit/androidAPI
- Nit SharePreferences class implemented but not tested yet
Merge branch 'ffi-java-fixes' of https://github.com/xymus/nit into app.nit/androidAPI
- SharedPreferences implemented and tested
- Problems with global ref deallocation (causes problems in extremely
  intensive usage of SharedPreferences)
- Local ref deallocated correctly
- Simple app (mnit_simple) implements tests for SharedPreferences
- Work in progress
Merge https://github.com/privat/nit into app.nit/androidAPI
SharedPreferences: Added test units into /examples/mnit_simple

Signed-off-by: Frédéric Vachon <fredvac@gmail.com>
SharedPreference: Wrapped Android API SharedPreferences class and basic Nity API to use SharedPreferences services

Signed-off-by: Frédéric Vachon <fredvac@gmail.com>
SharedPreferences: New module created to provide API 11 services

Signed-off-by: Frédéric Vachon <fredvac@gmail.com>