Fork & merge from @vals
Introduced setUpClass instead of setUp, we want the testclass initialized *once*
Added tests to create a bloom filter and check existence of reads in it
Added fasta compatibility
Fixed testsuite, refactored non working lambda definitions to actual methods
Got rid of non-deterministic tests for bloom filter, passing
Sampling was messing up with the bloom filter matching
sampling back, respects matching
Merge pull request #1 from brainstorm/master

It was fun to try out bloom filters with this... thanks @vals ;)