Merge pull request #22 from philip30/master

Consider Trg on Lookuptable
Merge pull request #23 from philip30/master

[HOTFIX] Fixed dumb bug: forgot to clone stats causing mt-eval fail to calculate PINC
Added libtool to documentation
Sleep shortly when running parallel processes
Fixed a bug in the preprocesser that didn't split words properly
Merge branch 'master' of github.com:neubig/travatar
Better filtering for hierarchical models
Removed specific nbest for Geoquery instead made it possible to use external program to generate stat
Added option to trace the 1-best output
Fixed trace collector waiting for the empy n-best list output id