adjusted benchmark style to match call_test.go, added benchmarks for all regex-related functions.
adjusted benchmark style to match call_test.go, added benchmarks for all regex-related functions.

deoxxa/otto,robertkrimen/otto,deoxxa/otto,robertkrimen/otto,multiplay/otto,kingland/otto,kingland/otto,multiplay/otto,emicklei/otto,emicklei/otto,emicklei/otto