modified configuration support
changed symbol table implementation
minor changes
changed language model and many minor changes
1. changed overall model
2. add preliminary supprot for multi-nonterminal
1. various subtle changes
2. can decode one sentence
1. support multi-thread translation
2. can replace moses-chart decoder
3. various changes
4. few bug fix
fix one bug in output_buffer, still need to test multi-threaded function
1. changed runtime output to stderr
2. reduce memory used by output_buffer
3. add mutex to language model
1. changed language model implementation (directly using srilm)
2. fix rule pruning
1. added new rule heuristic function
2. moved moses part souce to extension/moses/moses_interface.cpp
3. remove unused includes
1. changed language model score
2. changed Makefile