Merge pull request #548 from jeff1evesque/bash_web

#536: Bash 'web', 'compress' compiled css
#549: .gitignore, ignore '.sass-cache/' subdirectory
Merge pull request #550 from jeff1evesque/gitignore

#549: .gitignore, ignore '.sass-cache/' subdirectory
#551: index.php, update reference to to 'style.min.css'
Merge pull request #552 from jeff1evesque/php_index

#551: index.php, update reference to to 'style.min.css'
#483: imagemin, update nodejs related files
#483: imagemin, additional imagemin files
#483: imagemin, remove node project
#483: imagemin, install for CLI
Merge pull request #554 from jeff1evesque/imagemin

#483: Install Imagemin
#553: Bash 'web', add comment