* check android builds
* feature: set rent_epoch to Epoch::MAX
* tweaks
* Update runtime/src/rent_collector.rs
Co-authored-by: Brooks Prumo <brooks@prumo.org>
* simplify changes to tests
* back out some test changes
* calculate_rent_result passes through Exempt
* move calc outside loop
* if rent epoch is already max, use 'NoRentCollectionNow'
Co-authored-by: Brooks Prumo <brooks@prumo.org>