for speed, use an Array then one #join to build the output, not repeated String concatenation

Signed-off-by: Ben Woodcroft <donttrustben@gmail.com>
0.8.7, and remove development dependencies to fix #115
Merge pull request #116 from wwood/faster_parsing

0.8.7
Merge branch 'master' of https://github.com/yannickwurm/sequenceserver