[R-Forge #5989] Can't use apply.paramset for a strategy having rebalance rule

Submitted by: Offer Markovich
Assigned to: Nobody
[R-Forge link](http://r-forge.r-project.org/tracker/index.php?func=detail&aid=5989&group_id=316&atid=1269)

apply.paramset calls applyStrategy.
The later does not support rebalance rules (one should use applyStrategy.rebalance for that).

attached is a simple fix that allows apply.paramset with rebalance rule.

Start by tracing how apply.paramset calls applyStrategy, then compare that path with applyStrategy.rebalance for strategies containing a rebalance rule. Confirm the intended behavior using the simple rebalance-rule strategy described in the issue; done means apply.paramset works without rejecting or mishandling the rebalance rule.

Written by the indexing model from the issue text.