email templates: align word to indicate branches: at / branch Some email templates use '<repo> at <branch>' while others use '<repo> branch <branch>'. Interestingly even some txt templates use one and the corresponding HTML template uses the other. This commit aligns all uses of 'at' and 'branch' to 'branch' as it is considered more expressive. The other choice would also be possible, as long as all users are aligned.

babel >= 0.9.6, < 2.4
waitress >= 0.8.8, < 1.0
pytest ~= 3.0, >= 3.3.0
pytest-runner
pytest-sugar>=0.7.0
pytest-benchmark
pytest-localserver
mock
sphinx
webtest < 3