Maven dependencies

[mathbagu]

A lot of maven dependencies are defined inside each module. Sometimes the version of these dependencies are not consistent with the parent pom.xml.
Every module should be checked to ensure that:

• the dependency is required and has the correct scope
• the dependencies are sorted by scope (compilation/runtime/test) and by name (groupId/artifactId)
• the dependency version is defined in the parent pom.xml
• the ipst-core dependencies are referenced with an explicit groupId (eu.itesla_project)
• the (internal) ipst dependencies are referenced with variables (${project.groupId} and ${project.version})