Moving completely from userscript.org (dead) to github.com.

[Improved] Abbreviations are more readable now, just allow one decimal.
[Removed]  "Check for updates" feature.
[Changed]  Download/Update urls of the metadata block to link to github.
[Changed]  GNU license to MIT license
[Fixed]    Detection of checked state on checkbox fields.
[Fixed]    Detection of disabled state on input fields.
[Added]    Folder with all releases.
[Added]    Small readme and some screen captures for improving the readme in the future.