Add assignment rules to any position in the list of assignment rules.
Add assignment rules to any position in the list of assignment rules.

Previous add_assignment_rule would always add the rule to the end of the list. If that rule modified a variable that a previous rule depended on, this would cause a crash. The user can now optionally specify which index in the list to use for the new rule.

GutenkunstLab/SloppyCell,GutenkunstLab/SloppyCell