WIP split of executive into processor/notifier

I haven't fixed the cucumber steps to work with the new code yet.
fix event parts of cucumber tests
bugfixes, fix notifications cucumber tests
pass event count through to notifier
backwards compatible config loading, fix truth checking
Merge branch 'master' of github.com:flpjck/flapjack into 247_split_executive
Merge branch 'master' of github.com:flpjck/flapjack into 247_split_executive
Merge branch 'master' of github.com:flpjck/flapjack into 247_split_executive
Merge pull request #248 from ali-graham/247_split_executive

Split executive into two parts