works without config.js, and improved docs
make changes suggested by matiu
Merge pull request #507 from maraoz/fix/config-defaults

works without config.js, and improved docs
Add password strenght tooltip
Merge pull request #508 from yemel/feature/password-strenght-tooltip

Add password strenght tooltip
Add warning message on new Copay version
Merge pull request #515 from yemel/feature/warning-message-on-new-version

Add warning message on new Copay version
resolved upstream merge