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: 1f61607c4279b01349e1a6fd2919cc0

darcs-hash:20091201183307-c0fd0-629e094093ef16f299749d9fd7db412120809e13.gz

Ignore-this: 27ea52110bce929b2c61ed8faba67cfc

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

Ignore-this: 7c8f68f29f52bc1d33fdb76ba98d2307

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

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

Ignore-this: 59e6f832b1b8da77c45c332b8ade8538

darcs-hash:20090507163952-6bf33-4056b5f046acf4817f8d30d7a95cbfcb0b4c87da.gz

Ignore-this: 27d25dde73f24167077fd30550181efc

darcs-hash:20090128151801-dc188-3ba6dc9916a664db87ca990216d384ba68125888.gz

darcs-hash:20090119175459-2105c-03441bcf63592c49fa7ef1f16dada2b1df5e1f25.gz

darcs-hash:20081201212346-23886-81f2bc6c2c021b3f1e9c7367d8ffbab12700e379.gz

darcs-hash:20081011143946-23886-78628e3ca7ec0c40f5d288c6a9832cd52b8b083b.gz

darcs-hash:20080815130000-f7d6d-2ecb0a83f96507db2cd51e60db292781f9c4da8e.gz

darcs-hash:20080713165852-7ad00-ab0f56fdac2554c967b8f53bec69807188e1ec7e.gz