Refactored the keys menu.
Minor language tweak.
Merge pull request #826 from Bo98/keys-menu-refactor

Refactored the keys menu
* Fixed /removelaw not removing the correct law if there are laws after the law chosen.
* Fixed /removelaw causing law numbers to not display correctly if the removed law has double-digit laws after it.
Merge pull request #827 from Bo98/removelaw-fixes

/removelaw fixes
Merge branch 'master' into refactor