added install
made changes requested by elbrogrammer
Merge pull request #331 from johnchase/install

added install
TST: Run all tests for parse_fasta and parse_qual work both with file names
and lists of strings as input.
ENH: parse_fasta and parse_qual accept open files and file names
STY: blank lines
TST: add tests for file name handling in parse_fastq
ENH: add file name handling for `parse_fastq`
DOC: there's actually a better way to check if something is an integer
Be explicit about binary-ness for fastq.
Merge pull request #334 from Jorge-C/py3docs

DOC: there's actually a better way to check if something is an integer
Merge pull request #333 from Jorge-C/filepath

Filepath