Fix spelling error
Spec to make sure that the number of lines in the file does not change
Remove dependency on psych
Add not-implemented cuke for #44
Result records lines by type
Remove Line class
Can override callbacks to WrapExpressions
Reorder EventStream tests
EventStream#record_result, when given a block, uses that to find the inspection instead calling inspect
WrapExpressions before_all/after_all keys are now expected to hold lambdas
Work on getting cukes to pass: two are failing, marked wip

They depend on the xmpfilter pp stuff being pulled up to the binary level