Remove .gitignore from deb package.
Bump up version and update author email.
Add chdir utility function.
Fixed lrzip archive handling.
Remove unused import.
Fixed python lzma handling.
Fix invalid test files.
Cleanup test utility functions, add needs_module().
Add Multifile test mode and fix some test function errors.
Use new test mode functionality.
Add search command.
Install more archive programs for travis.