added cache for local import paths
added cache for local import paths

albrow/gopherjs,gopherjs/gopherjs,jargv/gopherjs,jargv/gopherjs,gopherjs/gopherjs,albrow/gopherjs,bpowers/gopherjs,gopherjs/gopherjs,albrow/gopherjs,bpowers/gopherjs,gopherjs/gopherjs,bpowers/gopherjs,gopherjs/gopherjs,jargv/gopherjs