Move resolver functions out of header file
Add support for multiple atomspaces
Add a simple unit test for multi atom spaces
Merge pull request #622 from linas/multispace

Naive multi-atomspace support
Reorganize the CMakefile.

Whoops ... looks like I forgot to check this in, previously. Oww.
Merge pull request #623 from linas/bld

Reorganize the CMakefile.