Merge remote-tracking branch 'lenaten/8tracks'

diff --cc youtube_dl/extractor/eighttracks.py
index a30a1f3305ad9d2ba61552571accf23ec2625bff,f093592a85da872ca0b206d222e025c08f124dff..9df2141c3166be943c80718ddd5e40b4b2ee0b24
--- 1/youtube_dl/extractor/eighttracks.py
--- 2/youtube_dl/extractor/eighttracks.py
+++ b/youtube_dl/extractor/eighttracks.py
@@@ -4,10 -4,12 +4,12 @@@ from __future__ import unicode_literal
  import json
  import random
  import re
+ import time
  
  from .common import InfoExtractor
 -from ..utils import (
 +from ..compat import (
      compat_str,
+     ExtractorError,
  )