Added tests to CellGrowth
Merge branch 'develop' into feature/tests
Finished CellGrowth tests
Added tests for empty substrate and metabolite
Categorise spec tests for more order
Add TimeMachine mixin

Adds history enabled functionality
Merge branch 'develop' into feature/mixins
Add Mixable Dynamic Properties spec
Add Mixable Event Bindings spec
Fix Event Bindings removal bug
Add Mixable TimeMachine spec
Add Mixable spec
Complete Coverage on Mixable TimeMachine
Merge branch 'feature/mixins' into develop
Merge branch 'develop' into feature/sig/refactor
Fix cross browser undefined setter
Add specs for side effects in Event Bindings
Add trigger method for Event Bindings
Add set method for actions
Update cell spec for refactoring of cell