Update README
add a findImport hook, give it the set of collected symbols for a reference
Merge pull request #6 from crawshaw/master

add a findImport hook, give it the set of collected symbols for a refere...
Merge pull request #4 from shawnps/patch-1

Update README
switch to using astutil
Merge pull request #7 from crawshaw/master

switch to using astutil
Match packages using the local GOROOT and GOPATH.
Merge pull request #8 from crawshaw/master

Match packages using the local GOROOT and GOPATH.
find imports in parallel
Merge pull request #9 from crawshaw/master

find imports in parallel