[hashed_splay] testing and cleaning execution splay
[hashed_splay] use hash execution splay for server
[hashes_splay] updated execution splay tests
[handler_output] single log event for handler output, line array
[handler_output] single log event for handler extension output
Merge pull request #832 from portertech/feature/handler_output

Single log event for handler output, line array
Merge pull request #831 from portertech/feature/hashed_splay

Use hashed execution splay for all scheduling