Merge pull request #3 from jsoverson/master

Thanks Jarrod..
Merge branch 'master' of github.com:iamchrismiller/grunt-casper
fixed failing tests
added build status travis image
bump version for new grunt support
updated release notes
update phantom version
updated travis paths
export version
Update .travis.yml
Add support for options and args passing to casperjs

CasperJS allows passing options and arguments on the command line when
not in test mode.  This patch modifies grunt-casper to pick up
additional arguments passed to the a grunt task and pass them through
to casper when not in test mode.
Merge pull request #5 from mapsherpa/add-arg-support

Add support for options and args passing to casperjs
add support for xunit option
Merge pull request #6 from WayinCO/master

add support for xunit option
Update package.json

version bump
Update README.md
fix for multiple files overwriting xunit option
Merge pull request #7 from WayinCO/master

fix for multiple files overwriting xunit option
Merge branch 'master' of github.com:iamchrismiller/grunt-casper
changed grunt logging from verbose -> log