Tests for writing hi bit pgm
Write support, fixes #602
consistency
Update .gitignore from https://github.com/github/gitignore keeping Vim and emacs cruft
Use tester.py's built-in coverage and coverage.py's built-in cleanup
Read existing data coverage on measurement start, save on stop. Only measure PIL code.
pep8 Tests/tester.py
Start coverage measurement earlier so tests are properly covered
Merge pull request #607 from hugovk/master

Fix test coverage
sanity check on ascii integers
Fix failing tests, turns out I is different than L
Merge from master
Rename import_err to something more general
Use the deferred error to provide a logical exception on access to a closed image
Coverage badge in README [ci skip]
SVG Travis, and Coverage badge in docs [ci skip]

The SVG badge uses the Shields project for consistency with other projects' badges.
More info:
http://blog.travis-ci.com/2014-03-20-build-status-badges-support-svg/
Use SVG Travis CI badge [ci skip]
Fix alt text [ci skip]
Merge pull request #612 from hugovk/patch-1

Badges: SVG Travis, and coverage in README [ci skip]
Merge pull request #613 from hugovk/patch-2

Badges: SVG Travis, and Coverage in docs [ci skip]