- Adjustments in demos for the recent changes in the ORB API ('orb:run' and 'orb:shutdown' new semantics).
- Discarding inadequate demos.

git-svn-id: https://subversion.tecgraf.puc-rio.br/engdist/oil/trunk@148321 ae0415b3-e90b-0410-900d-d0be9363c56b