Revert "Upgrade java-driver version"

This reverts commit 17e0275602c486e4e4db3e0d9e1033f76a1d2511.
Merge remote-tracking branch 'origin/master' into mf/upgradeJavaDriver
Merge pull request #60 from Pardot/mf/upgradeJavaDriver

Mf/upgrade java driver - Revert version upgrade