- check if script is running in bash. if not, throw an error (tested with sh, dash, zsh)
- change unsupported distro to warning. users will now be able to run it on unsupported distros, but they will be on their own for installing tools/binaries needed
- add message when base/target ipsw is validated/failed validation
- select base/target ipsw now checks for ipsw files in the script folder, and added menu to select those ipsws.
- stricter checks for selecting base/target ipsws for powdersn0w.
- check each binary needed in path individually, and print a warning for each missing tool.
- static scp and ssh for linux
