Fixed http fonts path
Better css/scss generation (fix #64)

- sass without bootstrap support, fixed requirejs errors without bootstrap, enhanced non-bootstrap index.html
- fixed duplicated css from concat on build
- removed scss and sass files when scaffolding without bootstrap due to duplicates in stylesheet
- moved no-bootstrap css to main.css in templates
- main.scss for Bootstrap now in template file rather than inline
Merge pull request #80 from kraftwer1/master

Fixed http fonts path
Use the new built-in Yeoman welcome message
Bumping to 0.2.3, deps to yeoman-generator 0.12.0
Added support for autoprefixer