fix loading child entities within an entity
adding exit visitor to set modified flag to false after sending client
update
change to exit visitor for modified flag
exitvisitor after loading simulation
adding requestIds to load and start command, part of work that allows
widgets to use the objects instead of strings
fix for cast error
Merge pull request #63 from openworm/referencing_variables

Referencing variables
Removing re-initialization if the visualization tree is empty as the
simulation could have no visual elements! @jrmartin were there any
reasons for this?
set initialized flag to false after stopping simulation
change to allow dummy simulator updates to client
adds detailed logging for time it takes to initialize simulation.
Removes call to readModel() inside CreateRunTimeVisitor, retrieves model
from stored hashmap in session context instead
Adding catch
logging exceptions. Using join() thread when stopping simulation to
avoid concurrentmodificationexceptions then
Adding commented lines for what should happen
changes to logs
Merge remote-tracking branch 'origin/development' into neuromlpopulation
fix adding aspect
Merge pull request #64 from openworm/neuromlpopulation

Neuromlpopulation
reset trees after stop
Subentities changes