Update ImageDownloader.java

Added an schema to support video of sdcard and it will be used to get video thumnail from the sdcard video path i.e. /storage/emulated/0/Video/VID_20141015_184740.mp4 or video of any folder
Update BaseImageDownloader.java

Based on added an schema to support video of sdcard and it will be used to get video thumnail from the sdcard video path i.e. /storage/emulated/0/Video/VID_20141015_184740.mp4 or video of any folder.

And to get video thumnail in getView of adapter or for single image we can use it like this way

imageLoader.displayImage("video://"+imageVideoPath,holder.ivVideoThumbnail, MyApplication.options, null);

where imageVideoPath is String or Video file path i.e. /storage/emulated/0/Video/VID_20141015_184740.mp4
Readme: apps
Readme: apps
Merge pull request #780 from mkhan07/patch-2

Video file thumbnails support
Merge pull request #779 from mkhan07/patch-1

Video file thumbnails support
Video file thumbnail support
Travis: Build tools 21.1.1
Merge commit 'e2c608b6fdf704f2749d9fd561d09eea9b5739f7'