made sure deletions occur.
further changes to prevent table data to keep stacking up.
merged upstream changes.
Merge pull request #39 from SartoriusEarth/develop

Make sure tables aren't populated with extra stuff after tests run.
add consent signature image to Java SDK
Merge branch 'develop' of https://github.com/Sage-Bionetworks/BridgeJavaSDK into develop
Merge pull request #41 from DwayneJengSage/develop

add consent signature image to Java SDK
Updating to develop