update: Added similarity cutoff

* Added similarity cutoff at 95 percent to improve overall accuracy.

Signed-off-by: mr.Shu <mr@shu.io>
update: Allowed unsafe redirections

* It turns out there are redirections in the data set that are just not
  safe by any measure (they are in the form of https -> http) but we
  should still get the data in that case.

Signed-off-by: mr.Shu <mr@shu.io>
update: Added travis.yaml file

* Added travis file to simplify testing.

Signed-off-by: mr.Shu <mr@shu.io>