Normalize colon style
Ignore .pyo files too (equivalent of .pyc when run with -O)
Merge pull request #22 from google/normalize_colon_style

Normalize colon style
Merge pull request #23 from google/ignore_pyo

Ignore .pyo files too (equivalent of .pyc when run with -O)
Revert "Normalize colon style"
Merge pull request #25 from androguard/revert-22-normalize_colon_style

Revert "Normalize colon style"
Normalize colon style