/**
* Using getAllowedParams(), makes an array of the values provided by the user,
* with key being the name of the variable, and value - validated value from user or default.
- * This method can be used to generate local variables using extract().
* limit=max will not be parsed if $parseMaxLimit is set to false; use this
* when the max limit is not definite, e.g. when getting revisions.
*/