Fixes #2431 - Adds changelog title normalization.

[karlcow]

r? @miketaylr

[TravisBuddy]

Hey @karlcow,
Something went wrong with the build.

TravisCI finished with status errored, which means the build failed because something unrelated to the tests, like a problem a dependency or the build process itself.

[karlcow]

Thanks travis. My bad. repushing.

[miketaylr]

a pep8 error:

$ pep8 --ignore=E402 webcompat/ tests/ config/secrets.py.example
tests/unit/test_tools_changelog.py:31:13: E123 closing bracket does not match indentation of opening bracket's line
tests/unit/test_tools_changelog.py:32:13: E123 closing bracket does not match indentation of opening bracket's line

[miketaylr]

Thanks Karl!

[miketaylr]

(feel free to merge once the pep8 error is fixed)

[karlcow]

hmmm I need to fix my sublimetext linter. I'm having too many of these lately. Thanks for catching this one.

[karlcow]

ok fixed the mistake.

🐝 06:04:22 ~/code/webcompat.com
→ pep8 --ignore=E402 tests/
🐝 06:04:50 ~/code/webcompat.com
→ nosetests tests/unit/test_tools_changelog.py
..
----------------------------------------------------------------------
Ran 2 tests in 0.001s

OK

Let's run travis and I will merge. Thanks @miketaylr