Added *.swp to gitignore
Added PegelPortalMv data source
server: made ExecuteQueryRestlet slight more generic

Most Router classes should be able to use it for most their
Restlet operations.
server: minor cleanup in PegelPortalMvRouter
server: ExecuteQueryRestlet supports querying with attributes
server: PegelOnlineRouter no longer uses custom restlets
server: minor rename
grabber: added units to PegelPortalMvGrabber
grabber: decode html content in PegelPortalMvGrabber
server: fixed bug where .../$class was mapped to .../{station}

Note: the order of inserting restlets into the router is important!
Current fix uses a LinkedHashMap to maintain order.
grabber: fixed minor js bug in PegelPortalMvGrabber