Make Bedevere showing label names like GitHub does

[arhadthedev]

Currently Bedevere prints raw label names:

Note that a label is spelled as raw :hammer: test-with-refleak-buildbots. However, the label selector shows it differently:

This PR fixed the raw output of code blocks with a manual rendering of this exact emoticon. Thanks to it the message will look like this (simulated with Chrome Developer Tools):

[arhadthedev]

@zware

[hugovk]

Thanks for this, it was bugging me recently too :)

Rather than using code formatting, does it look better with the <kbd> tag?

So instead of:

If you want to schedule another build, you need to add the 🔨 test-with-refleak-buildbots label again.

Like this:

If you want to schedule another build, you need to add the 🔨 test-with-refleak-buildbots label again.

It works with either of these:

<kbd>:hammer: test-with-refleak-buildbots</kbd>

<kbd>🔨 test-with-refleak-buildbots</kbd>

[arhadthedev]

@hugovk Thank you, it made the patch extremely compact.