Git-archive-all

-------------------

- Add the git_version parameter to GitArchiver and the get_git_version class method
- If git version (initialized or guessed) is less than 1.6.1, exception is raised
- Properly read non-nul separated output of check-attr if git version is less than 1.8.5. See 65

**Known Bugs:**

- Does not work with Apple's git (bundled with Xcode). See 68

-------------------

- Support Windows
- Fix missing pycodestyle in setup.py's tests_require

-------------------

- Fix passing compresslevel=None may cause segfault on some systems

-------------------

- 🎃
- Use -0 ... -9 to explicitly specify compression level if format allows; if unset, lib's default is used
- Checking for file exclusion is optimized, the process is spawned only once per repo / submodule

**Known Bugs:**

- Not passing a compression level explicitly `[-0 | ... | -9]` may cause a segfault. See 59

-------------------

- Fix broken support for zip files

-------------------

- Fix redundant print
- Fix mismatch between dry-run and normal verbose logging
- Fix missing support for tbz2 files
- API: Raise ValueError instead of RuntimeError if output format is not recognized
- API: Conditionally import zipfile / tarfile depending on requested output format