Update and sort other dependencies
Update and sort other dependencies

- Use default depencies of Rails 4.2
- Sort gems

Juuro/publify,telekomatrix/publify,jcfausto/publify,sf-wdi-25/publify_debugging_lab,shaomingtan/publify,solanolabs/publify,publify/publify,drakontia/publify,hmallett/publify,K-and-R/publify,mozzan/publify,blairanderson/that-music-blog,solanolabs/publify,seyedrazavi/publify,whithajess/publify,whithajess/publify,sf-wdi-25/publify_debugging_lab,mozzan/publify,freibuis/publify,blairanderson/that-music-blog,K-and-R/publify,telekomatrix/publify,drakontia/publify,jcfausto/publify,hmallett/publify,publify/publify,SF-WDI-LABS/publify_debugging_lab,K-and-R/publify,whithajess/publify,mozzan/publify,seyedrazavi/publify,hmallett/publify,blairanderson/that-music-blog,freibuis/publify,SF-WDI-LABS/publify_debugging_lab,solanolabs/publify,SF-WDI-LABS/publify_debugging_lab,sf-wdi-25/publify_debugging_lab,telekomatrix/publify,publify/publify,shaomingtan/publify,freibuis/publify,jcfausto/publify,Juuro/publify,Juuro/publify,seyedrazavi/publify