[glide] Add new extractor

Added an extractor for glide.me shared messages.  Glide is a movile video messaging services.  You can share the link to the messages easily enough and this would allow you to download and save the actual video.

youtube_dl/extractor/glide.py

@@ -0,0 +1,33 @@
+# coding: utf-8
+from __future__ import unicode_literals
+
+from .common import InfoExtractor
+
+
+class GlideIE(InfoExtractor):
+    IE_DESC = 'Glide mobile video messages (glide.me)'
+    _VALID_URL = r'https?://share\.glide\.me/(?P<id>[A-Za-z0-9\-=_+]+)'
+    _TEST = {
+        'url': 'http://share.glide.me/UZF8zlmuQbe4mr+7dCiQ0w==',
+        'md5': '4466372687352851af2d131cfaa8a4c7',
+        'info_dict': {
+            'id': 'UZF8zlmuQbe4mr+7dCiQ0w==',
+            'ext': 'mp4',
+            'title': 'Damon Timm\'s Glide message',
+            'thumbnail' : 'http://dk608k4lm7m9j.cloudfront.net/3ee7da5af87065a1eeb8c6c9a864ba5b_2.jpg'
+        }
+    }
+
+    def _real_extract(self, url):
+        video_id = self._match_id(url)
+        webpage = self._download_webpage(url, video_id)
+        title = self._html_search_regex(r'<title>(.*?)</title>', webpage, 'title')
+        video_url = self._search_regex(r'<source src="(.*?)" type="video/mp4">', webpage, 'video_url')
+        thumbnail_url = self._search_regex(r'<img id="video-thumbnail" src="(.*?)" alt="Video thumbnail">', webpage, 'thumbnail_url')
+
+        return {
+            'id': video_id,
+            'title': title,
+            'url' : 'http:' + video_url,
+            'thumbnail' : 'http:' + thumbnail_url
+        }