Add tests for actually receiving multiple signals and multiple polls at once, not just listening for them.
Add tests for actually receiving multiple signals and multiple polls at once, not just listening for them.

kamalmarhubi/capnproto,mologie/capnproto,mologie/capnproto,hntrmrrs/capnproto,zarvox/capnproto,artillery/capnproto,joliss/capnproto,ocdtrekkie/capnproto,modulexcite/capnproto,joliss/capnproto,jparyani/capnproto,jparyani/capnproto,martindale/capnproto,geofft/capnproto,vladon/capnproto,zarvox/capnproto,kamalmarhubi/capnproto,ligzy/capnproto,hntrmrrs/capnproto,mologie/capnproto,ligzy/capnproto,vladon/capnproto,a-richardson/capnproto,jparyani/capnproto,vladon/capnproto,ocdtrekkie/capnproto,rcrowder/capnproto,johnkdoe/capnproto,mrdomino/capnproto,a-richardson/capnproto,bryce-gibson/capnproto,MarPiRK/capnproto,Fraser999/capnproto,pjulien/capnproto,johnkdoe/capnproto,geofft/capnproto,maurer/capnproto,bsn069/capnproto,joliss/capnproto,Fraser999/capnproto,nagyistoce/capnproto,modulexcite/capnproto,artillery/capnproto,nagyistoce/capnproto,Fraser999/capnproto,ocdtrekkie/capnproto,MarPiRK/capnproto,hntrmrrs/capnproto,kamalmarhubi/capnproto,mrdomino/capnproto,mrdomino/capnproto,khklau/capnproto,nagyistoce/capnproto,bsn069/capnproto,artillery/capnproto,maurer/capnproto,rcrowder/capnproto,bsn069/capnproto,pjulien/capnproto,bryce-gibson/capnproto,maurer/capnproto,johnkdoe/capnproto,zarvox/capnproto,ligzy/capnproto,rcrowder/capnproto,martindale/capnproto,khklau/capnproto,khklau/capnproto,MarPiRK/capnproto,bryce-gibson/capnproto,pjulien/capnproto,a-richardson/capnproto,modulexcite/capnproto,geofft/capnproto,martindale/capnproto