move appiumutils tests into tests/functional/appium/
starting on on some jsonwp compatibility fixes and tests
follow JSONWP in allowing not implemented methods and responding with 501
a bit of cleanup
send 500s on internal errors to conform with JSONWP
tests of 500 server error behavior
fix unit tests and instruments exit behavior
handle pre-stopped edge case better
remove .only
Merge branch 'master' of github.com:appium/appium
fix this appium test using the wrong finder logic
Merge pull request #63 from jlipps/master

conform better to JSONWP spec