Fix properly the warnings at Arlas-server startup

[MohamedHamouGisaia]

At ARLAS-server startup several warnings are thrown (Reference #419)

WARN  [2019-03-11 18:03:02,500] org.reflections.Reflections: could not get type for name org.zeroturnaround.javarebel.ClassEventListener from any class loader
! java.lang.ClassNotFoundException: org.zeroturnaround.javarebel.ClassEventListener
! at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
! at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
! at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
! at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
! at org.reflections.ReflectionUtils.forName(ReflectionUtils.java:388)
! ... 73 common frames omitted

The warnings are due to the upgrade of dropwizard-swagger to 1.2.x

This link explains the source of problem

This upgrade introduces BeanConfig.
"BeanConfig scanns all classes (not only the ones you set as resource packages) and tries to create class objects for them.

The "problem" is that there are plenty of classes in the resulting shaded jar that are using import statements of classes that are not provided/used by your (or alt least mine) dropwizard application."

[MohamedHamouGisaia]

This warning does not exist anymore after upgrade of dropwizard-swagger to 2.0.12-1. Closing.

@alainbodiguel @mbarbet