Added option to modify querystring sent to actual script.#4

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nleclerc wants to merge 3 commits intoctrix:masterfrom

nleclerc:query_string_support

Commits on Jun 30, 2014

Added option to modify querystring sent to actual script.
nleclerc
committed

Commits on Jul 30, 2014

Added support of relative uri in query string declaration.
nleclerc
committed
Fixed 'null' being inserted in querystring when original query is missing.
nleclerc
committed