Fix class name typo from 'hndle' to 'handle'

[michalzuber]

The typo was introduced in [8682] changeset.

[michalzuber]

Replaced strings 'hndle' to 'handle'

[ocean90]

We can't change it without leaving the old class for backwards compatibilty.

[swissspidy]

What ocean90 says :)

[salcode]

@johnlauber and I took a pass at updating this patch to include backwards compatibility at #WCUS

[palmiak]

Refreshed path

[swissspidy]

@palmiak You'd need to refresh 32017.2.diff​, not 32017.diff​ because of the comment before:

We can't change it without leaving the old class for backwards compatibility.

[palmiak]

Ok - so not find & replace but find & add :) I'll try to do it during the weekend or on monday

[palmiak]

refreshed file with backward compatibility

[bookdude13]

Refreshed patch (last one corrupt?)

[bookdude13]

Hey all, sorry for this being so delayed :/

The patch was corrupted for me, so made my own off of trunk (16 Jan 2020). A quick glance on the dashboard page source makes this look like it works, but needs actual checking.