am 20a6dea1: Add a flag for bigram presence in the header

* commit '20a6dea1cabfd8822824f7dca828d898e5b91cbc':
  Add a flag for bigram presence in the header
tree: 8d240b92bd08af04bb5cbc773e691f67658e4d0c
  1. dictionaries/
  2. java/
  3. native/
  4. tests/
  5. tools/
  6. Android.mk
  7. CleanSpec.mk