OverSim-20070404:

  - Connect IPv4Underlay to real networks via TunOut (see HOWTO.Realworld)

  - New SingleHost Underlay: Emulate a single host. This host can be connected
    to a real network and an external Application (RealApp) (see
    HOWTO.Realworld)

  - up to 3 tiers with compound modules on application layer instead of one
    single application module, new TierDummy module for unused tiers.

  - Support for compiled-in NED files and disabled dynamic library loading

  - Added maximum hop count parameter for iterative routing

  - Several bug fixes for the BaseLookup class

  - new global module: GlobalStatistics

  - Correct statistics for forwarded Chord messages

  - Bug fixes and support for multiple runs in bin/overStat.pl

  - API: new gate names at each tier: to_upperTier, from_upperTier,
    to_lowerTier, from_lowerTier, from_udp, to_udp;
	
  - API: BaseOverlay::isResponsible() now queries, if a node is
    in the k neighborhood for a given key.

OverSim-20061215:

  - first public release

