added fedora install script
Merge pull request #5 from spy14/spy

added fedora install script
build deps
add prefix for random name
download image to DIR directory
change deps download method
fix typo
- Add image #num to console log
- Add time base unique id to image name
- Add shoot/scene id to image name (to increase press [ENTER])
- Separate "kill INT" and "kill TERM" background proccesses
- Relocate named pipe file
- Improve comments