[test] tell Travis to install rtmpdump and add initial support to rtmp testing

.travis.yml

@@ -3,6 +3,9 @@ python:
   - "2.6"
   - "2.7"
   - "3.3"
+before_install:
+  - sudo apt-get update -qq
+  - sudo apt-get install -qq rtmpdump
 script: nosetests test --verbose
 notifications:
   email:

youtube_dl/extractor/cinemassacre.py

@@ -12,27 +12,21 @@ class CinemassacreIE(InfoExtractor):
     _TESTS = [{
         u'url': u'http://cinemassacre.com/2012/11/10/avgn-the-movie-trailer/',
         u'file': u'19911.flv',
+        u'md5': u'f9bb7ede54d1229c9846e197b4737e06',
         u'info_dict': {
             u'upload_date': u'20121110',
             u'title': u'“Angry Video Game Nerd: The Movie” – Trailer',
             u'description': u'md5:fb87405fcb42a331742a0dce2708560b',
-        },
-        u'params': {
-            # rtmp download
-            u'skip_download': True,
-        },
+        }
     },
     {
         u'url': u'http://cinemassacre.com/2013/10/02/the-mummys-hand-1940',
         u'file': u'521be8ef82b16.flv',
+        u'md5': u'9509ee44dcaa7c1068604817c19a9e50',
         u'info_dict': {
             u'upload_date': u'20131002',
             u'title': u'The Mummy’s Hand (1940)',
-        },
-        u'params': {
-            # rtmp download
-            u'skip_download': True,
-        },
+        }
     }]
 
     def _real_extract(self, url):

youtube_dl/extractor/videopremium.py

@@ -9,12 +9,10 @@ class VideoPremiumIE(InfoExtractor):
     _TEST = {
         u'url': u'http://videopremium.tv/4w7oadjsf156',
         u'file': u'4w7oadjsf156.f4v',
+        u'md5': u'e51e4a266aab7531c6ac06f4ffee3b0d',
         u'info_dict': {
             u"title": u"youtube-dl_test_video____a_________-BaW_jenozKc.mp4.mp4"
-        },
-        u'params': {
-            u'skip_download': True,
-        },
+        }
     }
 
     def _real_extract(self, url):