New version containing fix for watch mode

[tjenkinson]

Hi,

Please can a new version be released containing https://github.com/jlmakes/karma-rollup-preprocessor/commit/87970358fdf6fc611258ea2fc4683644153b8c6c ?

Without it watch mode is a bit broken as every time a file changes an additional rollup watch instance is fired up, whcih doesn't really make sense and causes slow down and eventually a crash.

Thanks!

[XhmikosR]

@jlmakes friendly ping ^^