Updated examples under the jpa subdirectory:

1) Add lambda expressions to test eclipselink modifications in support of
   JDK 8 lambdas
2) Updated EclipseLink attribute converters to JPA 2.1 attribute converters
   in the Employee example
3) Updated pom files to use JDK 8, EclipseLink 2.6.0, and various updated maven
   plugin versions.

Signed-off-by: John Clingan <jtclingan@yahoo.com>
Signed-off-by: John Clingan <john.clingan@oracle.com>
41 files changed