This was updated in the english translation a while ago, but was still
missing in some translations

When loading plugins, $lang might not be initialized yet, so use a
hardcoded error message instead, especially as this error should only be
displayed for the admin (and then fixed). This also removes the
previously localized message, it might be re-added as part of the new
extension manager.

Attention: $lang['register'] has been renamed to $lang['btn_register'],
anyone using that in any plugin or template should adjust it.

Ignore-this: bcb25e26eb388224cc331ad4eea07e76

darcs-hash:20091115121018-e81ea-95c7d417ad437acefe32afa626a6028ca952370d.gz

Ignore-this: 27ea52110bce929b2c61ed8faba67cfc

darcs-hash:20091016205526-c0bf4-35eba4e65d37980a667ba982f7f1ea5b7b07f01c.gz

Ignore-this: ae15b9fe3c75847b9c413862a0a87ba9

darcs-hash:20090924182910-2a383-d1ded479c5c9461aa40d40baf2ea00f6e2450e8c.gz

Ignore-this: bf0e731014fc37f2ea8e6300a282310

darcs-hash:20090911131158-2a383-34dd53239fd0a0b0fe12e5ade14f9337395a8e62.gz

Ignore-this: 7c8f68f29f52bc1d33fdb76ba98d2307

Removed unused string, move another string to the [js] subarray.

darcs-hash:20090812191138-6e07b-65db1b7560d437fb26a1a4d0095cd768b2c9af01.gz

Ignore-this: 1454880f75d932f8f2c11c5ec3e1895f

darcs-hash:20090811184929-e81ea-ed76a9d92d0d6e4b2d9cf1d52cf6c5c247a2a7de.gz