Added some comments!

Added backstop and its configuration with shell script:

Scripts should work on Windows (need to be tested thoroughly)

Added error management to jade compiling task too

main.sass work around for gulp-sass bug

dlmanning/gulp-sass#275

Fix to gulp task sprites.js

Merge branch 'master' of https://github.com/Objectway/ow-starterkit

Added gulp-if and env variable for gulp-autoprefixer

Updated/Fixed README.md

Fixed README.md

Minimal cleanup