Minor edits to readme, add example using `mergeAttrs` and `explicitArray` to Gruntfile.

Change `inline` default to 8 to avoid confusing users (since the ouput doesn't look like YAML otherwise to anyone who is only familiar with using YAML for configuration)
Merge branch 'origin/master'

Conflicts:
	Gruntfile.js
	README.md
merge
re-add example after merge