pretty time should use capital M for month; fixes #3018
Add a few comment translations.
Fix shipping method sample data
- 9442383 required shipping methods to have at least one shipping
  category assigned
Start the installation instructions for people.

[Fixes #3007]
Removed localeapp dependency.

We can still use the gem to push translations to localeapp.com by installing it independently of spree.  Localeapp seemed to be causing issues with `rake test_app` as well so we're going to remove it.

[Fixes #3024]
Ignore localeapp API keys, etc.
Merge branch 'locale-adds-en' of github.com:rterbush/spree into locale-adds-en