Fixed several undefined errors.

Translation update (bg)

Translation update (zh-tw)

Translation update (it)

Translation update (it)

Translation update (it)

Translation update (it)

Translation update (it)

Translation update (it)

Translation update (it)

Translation update (it)

Fix Parser Media tests running locally

These tests were passing on travis-ci but failing when run locally because the tests were assuming the value of DOKU_BASE would be '/./' but it was actually '/tmp/' instead.

You now can add labels that don't wrap around inputs, but you have to
ensure IDs are properly assigned yourself.

The Label class has been renamed to LabelElement to reflect the naming
scheme of the other elements.

Revert "Trim unnecessary / at start of windowssharelink"

Merge branch 'lang_update_826' of https://github.com/dokuwiki-translate/dokuwiki into dokuwiki-translate-lang_update_826

Conflicts:
	lib/plugins/styling/lang/ru/intro.txt
	lib/plugins/styling/lang/ru/lang.php

Translation update (ja)

Translation update (hu)