fixed test task, minor clean-ups
added test mobile task. Updated readme
make sure the key is random (psudo random is enough) for each request
introduce slider for resizing the video
refactoring
added test for video resizer
removed copied files
added clean task to gruntfile
check if image is gif before redirecting
refactoring
updated urlHelper, tests
refactoring
fixed an issue where the resize slider was not removed properly
removed unused file

refactoring, build tweaks
change loading animation to spinner, minor css adjustments
Updated readme