Classpath resolving for confpath

It is now possible to load the configuration from the classpath.
Use the prefix "classpath:" to indicate that you want to load the config from classpath. Example:
"-Dcom.gentics.portalnode.confpath=<strong>classpath:</strong>&lt;PATH_TO_CONFIG&gt;"

**Attention**
when loading the config from classpath, make sure the index locations do not point to the directories in the classpath 
use absolute paths instead