Spring Boot 1.1.0

Previously, auto-reconfiguration did not work on Spring Boot
applications.  With the upcoming releases of Spring Boot 1.1.0.RELEASE
and Java Buildpack Auto-reconfiguration 1.0.0.RELEASE, this will no
longer be the case.  This change updates the buildpack to work with
Spring Boot 1.1.0.RELEASE and later.

[#49695439]
Merge remote-tracking branch 'upstream/master'