- fix typo in group:subGroup evaluation of second argument
- fix argument checking for group index write access: numbers not allowed
- Value:
- add type GRIDPOS besides POSITION to distinguish origional meaning
- add position retrieval for Values that describe objects or named positions
- add method ecl::V2 centeredPos() to retrieve a position vector that is
centered to the grid for GRIDPOS and objects aligned to grids
- attribute "destination" as supported by ac_horse, it_wormhole, it_vortex
- allow named position strings, thus being able to add multiple pure position
destinations
- named floor destinations being killed remain valid as they are now
interpreted as named positions
- add global attribute "GlobalForce" as a constant force applied to every
actor, the value is position like vector
