I was terribly inconsistent.
This is a breaking change, though unlikely to cause troubles.
The apis are mostly used in PowerShell scripts which is not
case sensitive.
The cmdlet name change is also mostly safe.
At any rate, this is version 2.0 and breaking changes should be OK.
Get-PSReadlineKeyHandler will now return unbound functions by default.
A couple of parameters were added so you can get just the bound/unbound
parameters if so desired.
OutputType was also added to Get-PSReadlineKeyHandler.
The OutputType was cleaned up a bit - BriefDescription was renamed to Function
and LongDescription was renamed to ShortDescription.