ffzap: download ældre versioner

What's Changed
- fix: inconsistent behavior if target exists by @CodeF0x in #29
Full Changelog: https://github.com/CodeF0x/ffzap/compare/1.1.1...1.1.2

Fixes
- typo in input file error handling by @yadunand-kamath
New Contributors
- @yadunand-kamath

New Features:
- added ETA (highly experimental)
- better error handling for the --file-list argument
Misc:
- removed deprecated --input-directory and --input-file arguments

Version 1.0.0 is out!Note: When running ffzap without either --input or --file-list, it will prompt that both --input-directory and --input-file are missing and required. This is a bug. Either --input or --file-list are required. Both --input-directory and --input-file won't work and throw an error. This is not critical and does not affect ffzap in its actual functionality. Both --input-directory and --input-file will get removed with the next version of ffzap.Features:
- -f / --ffmpeg-options is optional now, allowing to change container formats, etc.
Breaking Changes:
- --input-directory got deprecated in favor of --input
- --input-file got deprecated in favor of --file-list
Please read about why here. For a guide on how to migrate to version 1.0.0, read this.