Cross Reference: /external/openfst/src/extensions/ngram

`Name`	`Date`	`Size`
Up to higher level directory
`bitmap-index.cc`	25-Jul-2013	`7K`
`Makefile.am`	25-Jul-2013	`334`
`Makefile.in`	25-Jul-2013	`17.8K`
`ngram-fst.cc`	25-Jul-2013	`862`
`nthbit.cc`	25-Jul-2013	`4.2K`