Add Test for QI-298
Libraries minor upgrades
Jackson ValueSerialization now use Jackson 2.4
Hazelcast EntityStore now use Hazelcast 3.2.2
MongoDB EntityStore now use Mongo Driver 2.12.2
JClouds EntityStore now use JClouds 1.7.3
Gradle Wrapper now use 1.12

Yay, skipped tests are correctly now advertised in test reports.
Core Runtime, minor: Fragment and Transient loaders gen 1.7 OpCodes only

Seems fair as we now require Java 7.
Gradle Wrapper now use 1.12

Forgot the build.gradle
Bootstrap: minor fixes in javadoc
Core Runtime: now use ASM 5.x for Java 8 compatibility