do not call `Apipie::Extractor.call_finished` when exception raised
Revert "do not call `Apipie::Extractor.call_finished` when exception raised"

This reverts commit 5caf3fed14e36df5efc8e38860800c535a3d8337.
create a clean_call_recorder to clean recorder
Merge pull request #155 from nicholasren/master

do not call `Apipie::Extractor.call_finished` when exception raised