composition revised
Merge branch 'master' of github.com:opencog/opencog
trying a GA approach for decomposition
decomposition solved
some work on incremental decomposition
Replace pet actions by non pet specific actions
Hopefully last removal of pet actions in unit tests
Last fixes with removing pet actions from unit tests
Add back go_behind properties
Set DO_NOTHING as default action
Adjust the test as a result of replacing bark by eat
Fix NeighborhoodGeneratorUTest.cxxtest by replace beg by jump_up (same properties)
Get the scheme execution environment
Restructure evaluation in the guile code

..so that we'll be able to set environment
iActually pass the environment
Make proper use of environment for all evals
Explicitly provide the atomspace to scheme

This ia another step enabling muulti-atomspaces
Merge pull request #701 from linas/multispace

More preliminary steps to multi-atomspace support in scheme
Fix memory management bug

... which we are hitting only due to other redesigns.
Merge pull request #702 from linas/multispace

Fix memory management bug