add a option to load modules from additional dropin paths
netbeans configuration for pepper-lib project
extend the pepper.properties with an empty dropin path (so the module developer knows this parameter exists)
Merge branch 'develop' into dropins

Conflicts:
	pepper-lib/src/main/java/de/hu_berlin/german/korpling/saltnpepper/pepper/connectors/impl/PepperOSGiConnector.java
Merge pull request #31 from korpling/dropins

add an option to load modules from additional dropin paths