Merge pull request #26 from dostapenko/yaml

paypal_stop and paypal_start writtern
changes due to minor comments which led to major refactoring. most tests pass
two more failing test in reouter_spec fixed for new implementation
changes to try to brng the server functionality back
router, server, mail_creator, mail_sender specs now all passing again
remaining tests pass
server spec refactored using new id's and new approach
poller_spec tests fleshed out

polling frequency rspec test fleshed out
pull conflicts resolved