Cleaned up `git diff` check a little, added a --confirm option.
Cleaned up `git diff` check a little, added a --confirm option.

bryanmtl/g-refinerycms,louim/refinerycms,gwagener/refinerycms,LytayTOUCH/refinerycms,sideci-sample/sideci-sample-refinerycms,SmartMedia/refinerycms-with-custom-icons,bricesanchez/refinerycms,hoopla-software/refinerycms,trevornez/refinerycms,hoopla-software/refinerycms,pcantrell/refinerycms,kelkoo-services/refinerycms,chrise86/refinerycms,simi/refinerycms,Retimont/refinerycms,aguzubiaga/refinerycms,johanb/refinerycms,refinery/refinerycms,KingLemuel/refinerycms,mlinfoot/refinerycms,johanb/refinerycms,stefanspicer/refinerycms,johanb/refinerycms,kappiah/refinerycms,refinery/refinerycms,mkaplan9/refinerycms,koa/refinerycms,stefanspicer/refinerycms,kelkoo-services/refinerycms,pcantrell/refinerycms,Eric-Guo/refinerycms,refinery/refinerycms,mabras/refinerycms,SmartMedia/refinerycms-with-custom-icons,chrise86/refinerycms,Eric-Guo/refinerycms,LytayTOUCH/refinerycms,simi/refinerycms,trevornez/refinerycms,LytayTOUCH/refinerycms,mkaplan9/refinerycms,sideci-sample/sideci-sample-refinerycms,mojarra/myrefinerycms,mojarra/myrefinerycms,aguzubiaga/refinerycms,donabrams/refinerycms,simi/refinerycms,anitagraham/refinerycms,trevornez/refinerycms,mobilityhouse/refinerycms,KingLemuel/refinerycms,simi/refinerycms,KingLemuel/refinerycms,chrise86/refinerycms,mabras/refinerycms,Retimont/refinerycms,anitagraham/refinerycms,gwagener/refinerycms,anitagraham/refinerycms,louim/refinerycms,bricesanchez/refinerycms,mobilityhouse/refinerycms,Eric-Guo/refinerycms,donabrams/refinerycms,mabras/refinerycms,mlinfoot/refinerycms,kappiah/refinerycms,hoopla-software/refinerycms,stefanspicer/refinerycms,gwagener/refinerycms,kappiah/refinerycms,mkaplan9/refinerycms,bryanmtl/g-refinerycms,aguzubiaga/refinerycms,Retimont/refinerycms,mlinfoot/refinerycms,koa/refinerycms