Cleanup completeness test by removing parallelMerge obsolete comparison

- Switch to non-deprecated Scala reflection methods

- Make success/failure output easier to read
Revert usage of Scala 2.11 reflection API

- Would be nice if local unit tests were run against both 2.10 and 2.11
Revert file permission changes
Change method presence failure message as suggested

- Add helper method to print method presence status message
Merge pull request #25 from jbripley/completenesstest-removeparallelmerge

Cleanup completeness test by removing parallelMerge obsolete comparison