am d25cd26f: Merge "Try decaying user history at hourly intervals."

* commit 'd25cd26f1a18ebf385a9ce8aea1e9c7ba32bdfc7':
  Try decaying user history at hourly intervals.
tree: 71827c28582cb51c47942e2bea2609f7b0c115da
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk