Merge pull request #65 from niuox/ltp-unittest

Ltp unittest
english regex
Merge branch 'ltp-unittest' of https://github.com/HIT-SCIR/ltp into parser
engpatter & some unittests
Merge pull request #66 from niuox/ltp-unittest

Ltp unittest
srl create model bug
Merge pull request #67 from ruoshui1126/parser

engpattern & some unittests
do some comment work to adjust doxygen
remove python dll, for postag-dll, if failed to load constraints, should not return false
Merge branch 'ltp-unittest' of https://github.com/HIT-SCIR/ltp into ltp-unittest