Ignore readme files in subdirectories.

This prevents theme and plugin readme files from appearing as new files.
Fix login test failure

no issue
- added timeout after login limit tests
Merge pull request #1624 from sebgie/test_fails

Fix login test failure
Merge pull request #1621 from nmec/fix/gitignore

Ignore readme files in subdirectories.
Update dependencies.

- Important update for express (contains __proto__ fix in qs)
- Update all other dependencies to latest