start of cleanup
Revert "* Converted script to use coffee script."

This reverts commit cb587845caa09d8a88ca1ba154b05b45ae086c9a.
It's not reasonable to require coffee for this tiny file.

Conflicts:
	lib/shrimp/rasterize.coffee
* Don't allow gzipped responses because of a bug in phantomjs.

Conflicts:
	lib/shrimp/rasterize.coffee
* Log more detailed errors.

Conflicts:
	lib/shrimp/rasterize.coffee
big purge
some code is shrunk, some tests are passing again
more improvements, some jshinting
add error handler to ensure phantom js exits instead of hanging
and tests are passing
make it possible to see the exact command that will be run