Initial implementation of an elasticsearch indexer in Go

Closes #1 (closed)

indexer/indexer.go

@@ -44,8 +44,8 @@ func (i *Indexer) SubmitBlob(f *git.File, _, toCommit string) error {
 	return nil
 }
-func (i *Indexer) RemoveBlob(file *git.File, _, toCommit string) error {
-	blobID := GenerateBlobID(toCommit, i.Submitter.ParentID())
+func (i *Indexer) RemoveBlob(file *git.File, _, _ string) error {
+	blobID := GenerateBlobID(i.Submitter.ParentID(), file.Path)
 	i.Submitter.Remove(blobID)
 	return nil