reorganized categories of tools as discussed; updated master readme to reflect definitions
master readme style tweaks
moving nik's test_writer to import/random_stream, and deleted test_reader
added comments to clarify what import/random_stream does at the moment
added .dat files to gitignore
fixed bugs: 'sink' and single-quote go fmt errors from dewarrrrrrr
Merge pull request #23 from kradeki/master

new organization scheme; renamed `test_writer` to `import/random_stream`
merging