Update .gitignore (#109)
Update .gitignore (#109)

- Ignore all .pyc files
- Switch from specific bazel paths to just /bazel-*. This works better
  because the exact name of the bazel directory changes based on the
  name of the repo directory. For example, if you clone magenta into a
  directory called magenta-work, bazel will create a bazel-magenta-work
  directory.
hanzorama/magenta,hanzorama/magenta,jesseengel/magenta,YoshikawaMasashi/magenta,magenta/magenta,YoshikawaMasashi/magenta,adarob/magenta,adarob/magenta,YoshikawaMasashi/magenta,YoshikawaMasashi/magenta,magenta/magenta,jesseengel/magenta