Use tmpdir fixture for deploy unit tests
Use tmpdir to clone snoopy sandbox
Merge pull request #138 from sbesson/exclude_defaults

Modify the default exclude parameters for all merge commands
Merge pull request #139 from sbesson/conflict_typo

Fix conflicting message typo
Drop usage of --use-mirrors in .travis.yml
Merge pull request #141 from sbesson/travis_pypi

Drop usage of --use-mirrors in .travis.yml
Revert tmpdir changes in integration tests
Move cd() call to the low-level wrap-call() function

This commit implies any GitRepository method using a low-level `git ...`
command does not need to care about moving to the right location.
Fix typo
merge master -D org -I include -E exclude: PR 136 (Use more pytest fixtures)
merge master -D org -I include -E exclude: PR 142 (Move cd() call to the low-level wrap-call() function)