fix miss import-style when css is required deeply #18
Merge pull request #19 from popomore/fix-require-css-deep

fix miss import-style when css is required deeply #18
update hist
bump 0.7.2
upgrade dependencies close #15
change getFileInfo -> getFile, originPath -> history[0] #16

get the father file object from vinyl object
PluginError > Error for removing gulp-util
remove gulp
using file object of father when transportId
using file object of father when transportDeps
improve error message
bench
skip when file is null #13
update package
fix testcase