fix issue #56 and #57
Update ltp-document-3.0.md

./make change to make
Merge pull request #59 from ruoshui1126/patch-1

Update ltp-document-3.0.md
fix issue #60
parser dll bug
Merge pull request #63 from ruoshui1126/parser

Parser dll bug, inst is released but the code is still trying to get return value from instance.
Merge branch 'master' of https://github.com/HIT-SCIR/ltp