extend regex to support keys that contain "_" or "-"
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e.g.: https://docs.google.com/spreadsheets/d/1vXqouursElZIEhxBK_BlqcXUjIyKJg5FWIHU-kDayiM/edit#gid=0
Merge pull request #3 from preciousforever/master

Support URLs where key contains "_" underscore and "-" dash characters
Add option wrap
Bump version
Fix file save
Merge branch 'release/v0.6.0' into develop
Merge branch 'develop' of https://github.com/h0ward/grunt-gss into develop

Conflicts:
	src/gss.coffee
	tasks/gss.js