[dev] Widget preserver

[Chuck Hagenbuch]

Quoting Duck <duck at obala.net>:

> Is often that we add multiply variables to a pager of other widgets. Why not
> create a method that allows to pass an array of parameters at once (like
> posted search forum data). It will minimize the implementation code and make
> it cleaner. I attached an preserveMultiply function example, but it can be
> done with extending the existing preserve() like we have with
> Util::addParameter().

I would just extend preserve() to behave properly if you pass it an  
array, yes.

-chuck