stack trace filter and tests
temp commit before code cleanup
Merge branch 'master' of https://github.com/fkorotkov/intellij-pants into ajohnson__error_messages
PantsFilter initial push
new tests for PantsFilter
cleaned filter, tests
changed from file to filepath
improved tests
added tests
reformatted
Merge pull request #11 from fkorotkov/ajohnson__error_messages

Error message filter