Merge pull request #15 from guanguoyintao/release-v3

refactor(nebula-go):upgrade github.com/vesoft-inc/nebula-go version f…

Merge pull request #14 from qiaoxincheng0624/master

[fix] util加入time的import

Merge pull request #12 from wuneiii/master

ParseResponse support type time.Time

Merge pull request #11 from wangzeping722/fix-ignoretag

norm should ignore tag norm:"-"

remove model.GetVidWithPolicy method, add Upsert method

fix bug. query toSlice use rowSize not colSize

fix style. use interface func instand of struct field

chainable api go/from update style

support simple chainable api. detail please see example

count return 0 instand of null