[bugfix] resetState was only called once on user defined functions. It should be called whenever a query is returned to the pool. Not doing so results in extended memory use and potentially wrong query results if the cached query is reused.
Merge pull request #341 from wolfgangmm/develop

[bugfix] Expression state not properly reset throughout function calls
[bugfix] Conflicting namespace for exrest module: the module is in a different namespace than its functions.
Merge pull request #342 from wolfgangmm/develop

[bugfix] Conflicting namespace for exrest module