Possible incompatibility in sed invocation

[MHordecki]

When I run cake doc, a bug happens:
Error: Command failed: sed: can't read s/docco.css/resources/docco.css/: No such file or directory
at ChildProcess. (/usr/lib/node/libraries/sys.js:227:15)
at node.js:756:9

The problem is caused by two apostrophes in send invocation in the Cakefile. I'm by no means a sed guru, but for me just dropping those apostrophes altogether seems to fix the issue.

[jashkenas]

On this version of Sed (OS X), the quotation marks are required when using -i. It won't run if I leave them off. Sorry. We can change them to double quotes if that helps you any.

[MHordecki]

Oh, so that's the incompatibility thing between gnu sed and bsd sed. By looking at manpages of both, I think I've came up with a solution. It's in my master: http://github.com/MHordecki/docco/blob/master/Cakefile . I haven't got any bsd-based os, and bsd sed for linux is nowhere to found, so YMMV.

[jashkenas]

Nicely done, merged to master.