Merge pull request #11 from philip30/master

HieroExtraction includes Alignment
Made it possible to use two LMs
Merge branch 'master' of github.com:neubig/travatar
Fixed bug in parameter parsing for lm
Fixed a memory leak in HieroExtractor
Fix problem with []
Fixed tests
Use boost multithread libraries only if they exist
Changed default in config-batch-tune
Speed/accuracy improvements to score-t2s
Fixed reverse
Partly changed lexical probabilities
Made two lexical probability options
Merge branch 'master' of github.com:neubig/travatar
Made two options for lexical scoring
Fix of tree scoring
Removed regex (3 times faster model loading!!)
Merge branch 'master' of github.com:neubig/travatar
Removed more regexes
Speed updates for Hiero