pom.xml: upgrade plugins in reporting section

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
pom.xml: point issueManagement to the new repo

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
osgi: fix felix dependency conflict

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
pom.xml: fix Jackson dependency conflict

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
beatrix: fix commons-io dependency conflict

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
server: remove custom Guava version

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>
pom.xml: speed up builds

Remove the following plugins from the default build:

* maven-enforcer-plugin
* maven-dependency-plugin
* maven-dependency-versions-check-plugin
* maven-duplicate-finder-plugin
* apache-rat-plugin
* maven-source-plugin

These are activated only for Travis and release builds now.

This check-in also adds a new jdk17 profile to build java7 artifacts.

While we're at it, plugins have been upgraded to their latest versions.

Signed-off-by: Pierre-Alexandre Meyer <pierre@ning.com>