Fix issue with shorter vides (less than 3 seconds) causing issues with thumbnail generation #61

iCH-Borovich wants to merge 3 commits intoruby-av:masterruby-av/paperclip-av-transcoder:masterfrom

iCH-Borovich:allow_shorter_videos_by_defaultiCH-Borovich/paperclip-av-transcoder:allow_shorter_videos_by_defaultCopy head branch name to clipboard