SpringBoot Upgrade to Dependency Management Plugin 1.0.14.RELEASE

Comment From: wilkinsona

There's a performance regression in 1.1.0-RC1. Let's stick with 1.0.x for M5.

Comment From: wilkinsona

Reverted in https://github.com/spring-projects/spring-boot/commit/2662490b76ac46059c904e72217ff1f0262705ae which brings us back to 1.0.14.RELEASE.