wearefractal/gulp — pull request #50 by will-ob (2013-12-13 21:33:35+00:00)
Title: Allow file contents to be strings

Some gulp plugins (eg. [gulp-coffee](https://github.com/wearefractal/gulp-coffee)) replace the file contents with a
transpiled string. This fix writes string contents to disk the same way it would be written if it were a buffer.