Merge pull request alibaba#1077 from wenshao/master

druid-1.0.17

Merge pull request alibaba#971 from yakolee/master

1.0.16

Merge pull request alibaba#885 from yakolee/master

1.0.15

Merge pull request alibaba#816 from yakolee/master

1.0.14

Merge pull request alibaba#794 from yakolee/master

support sqlserver waitfor

Merge pull request alibaba#753 from yakolee/master

bugfix for alibaba#728

add license

add license

Merge pull request alibaba#643 from yakolee/master

improve sqlwall