Feature/review made easy

[ascheman]

These scripts support local code reviews (cf. contained README).

They are build upon other changes to facilitate tests with (large) measurement files (>= 100.000 entries) with unique measurements. The idea behind it was to detect hash function/collision errors which are more probable to occur with larger unique data sets.

But it should be possible to split these two concerns, @gunnarmorling or at least to make the execution of the unique tests optional.