Ignore the .sass-cache folder created by the example project
Merge pull request #45 from bartvandendriessche/ignore_example_sass_cache

Ignore the .sass-cache folder created by the example project
Updating Gemfile.lock
Merge branch 'master' of https://github.com/helios-framework/helios
Adding Push Notification sending configuration and endpoint

Signed-off-by: Mattt Thompson <m@mattt.me>