Currently the rubygem runtime dependency is jekyll ~> 0.12. Jekyll 1 was just released, and it doesn't look like any of the changes have broken asset pipeline, so really all is needed is to change the dependency version.
I can confirm, that everything seems to work with 1.0.0.
Pull Request to loosen dependency on Jekyll accordingly: #32.
Since #32 have been merged, can you please make a new release to make jekyll-asset-pipeline work out of the box with Jekyll 1.x?