LDEV-3275: Add missing dependencies. Update XStream to version 1.5.0, and its corresponding libraries. Reimplement LD attachment importing. Reimplement Content Repository credential check. Moja joda-time library to separate folder as it is not a part of XStream deployment anymore, but it is still needed in LAMS code.
LDEV-3275: Deploy Jdom as a WildFly module. If the 1.1.2 version delivered with WildFly is used, code changes are required as API is not the same. So current version 0.7 is left. Same situation is with Quartz. Upgrading 1.5.3 -> 2.2.1 requires code changes.