* Make use of multi-thread builds of maven
* Bump up maven version to get rid of parallel build bug
* Apply the same to E2E tests
* Apply the same to JavaDoc task
* Revert E2E settings
* Add maven tuning opts
* Increase maven fork process memory
* Moves to Maven wrapper to stabilize the version in use
This will ensure those building will have similar experience due to
having a fixed maven version.
* Updates most plugin versions and removes redundant configuration
* Sets up build enforcement for JDK 1.8 until further work occurs
吴晟 Wu Sheng
kezhenxu94
Adrian Cole