Check the license of mysql connector.

[babokim]

There is a dependency with mysql connector in build.sbt. I don't know exactly the license of mysql connector. The license of mysql connector isn't comparable with Apache license. So we should check the license of mysql connector.
I think that using derby for default meta store is more common and this can avoid the license problem.

[daewon]

checkout Feature/refactor/remove mysql 2, then run test
it works!

create 'models-dev', {NAME => 'm'} in hbase shell // src/main/resources/create_model.hql:1:9:create 'models-dev', {NAME => 'm'}
test-only com.daumkakao.s2graph.core.models.HBaseModelTest
bash script/test.sh                                                      

[info] HBaseModelTest:
[info] - test create
[info] - test update
[info] - test read by index
[info] - test delete
[info] Run completed in 1 second, 709 milliseconds.
[info] Total number of tests run: 4
[info] Suites: completed 1, aborted 0
[info] Tests: succeeded 4, failed 0, canceled 0, ignored 0, pending 0
[info] All tests passed.
[success] Total time: 2 s, completed 2015. 5. 21 오전 12:14:50

[daewon]

How about use postgresql? Instead of mysql