Fix infinite loop in CountingHash gzipped IO

[kdm9]

Addresses #1038

• Is it mergeable?
• Did it pass the tests?
• If it introduces new functionality in scripts/ is it tested?
  Check for code coverage with make clean diff-cover
• Is it well formatted? Look at make pep8, make diff_pylint_report,
  make cppcheck, and make doc output. Use make format and manual
  fixing as needed.
• Did it change the command-line interface? Only additions are allowed
  without a major version increment. Changing file formats also requires a
  major version number increment.
• Is it documented in the ChangeLog?
  http://en.wikipedia.org/wiki/Changelog#Format
• Was a spellchecker run on the source code and documentation after
  changes were made?
• Is the Copyright year up to date?

[kdm9]

I'm going to add a test of this, but it will take a while to run and at least 2gb RAM. I'll use @attr('huge') to mark it. Is this OK?

[kdm9]

Lines's stability is 87.83 and set mininum stability is 87.84. Soooo close!

Also, ready for review @ctb @mr-c

[ctb]

LGTM on a skim, but I will leave for @mr-c to merge. Note that we are in the middle of moving across the country so it may take a few weeks!

[kdm9]

Thanks, and good luck with the move :)

[mr-c]

@kdmurray91 'huge' is what 'linux' should have been named; can you rename the existing @attr('linux') to huge?

[kdm9]

No longer mergable, but as you're all moving I'll only rebase to fix the conflicts when you're ready to merge, which may take some time. Ping me when you're ready, and I'll rebase immediately :)

[ctb]

(We are also shifting to asking reviewers to make mergable on their own and just merge, in cases where no other changes are needed.)

[mr-c]

• update linux->huge in Jenkins, Makefile (mr-c)

[mr-c]

also update instructions in docs

[kdm9]

yo @mr-c, just let me know as soon as you need anything from me on this. Happy to implement whatever else you need.

[mr-c]

@kdmurray91 The worst of the merges should be done for a while. It you want to make this mergeable that'd be appreciated :-)

[kdm9]

Good to go!

[mr-c]

LGTM, Thanks @kdmurray91 !