Renamed .css.scss imports to .scss
Added params checking stub.
preserve params on clearfilter
Merge pull request #3623 from theB264/2811-preserve-params-on-clearfilter

2811 preserve params on clearfilter
Merge pull request #3672 from alex88/sass-imports

Renamed .css.scss imports to .scss
remove travis_cache
setup appraisal
change travis setup
strip off detect_rails_version
Try out the new beta build environment

- removed the time tags (this is built into Travis)
- use the new LXC build env on EC2
- use built in caching