Merge pull request #17 from p2t2/DEV3.0.0

Dev3.0.0
Element arguments are automatically activated when an element is activated
Fix package names and references to Factor classes that were moved back
to algorithm.factored
Merge pull request #343 from apfeffer/DEV3.0.0

Dev3.0.0
Concluding merge
Merge pull request #12 from p2t2/DEV3.0.0

Dev3.0.0