Change the hardcoded version of CasperJS that grunt-casperjs downloads from 1.0.3 to master. This commit is not for merging back into mainline because it does not solve the problem, it just kicks it down the road. Really, grunt-casperjs ought to be picking up the version of CasperJS that it requires from some sort of config, and defaulting to a known-good version. However, that does not seem to be easily possible with an install script, and so doing this would involve a more substantial rewrite of the way the package works.