This reverts commit 524df576.

Conflicts:
	inc/lang/bn/lang.php
	inc/lang/fr/lang.php

this has been done by a script and might not be 100% accurate

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: f554aa2828a6779f0564dbbce8481e50

darcs-hash:20091202183051-39587-4c7aaf9e3046a921ae49dfb87c26263991a60260.gz

Ignore-this: 8a3a5cbce1267cf0248069157ae5904b

darcs-hash:20091201183554-39587-1265d123015e0dbcc2e0efd8e1ca74dc989edd00.gz

Ignore-this: 67206a4928b518e8bf57f97e5035ecf1

darcs-hash:20091115202117-f6493-85c9b6112d2336ae3a42a72b14ee638659914565.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: d40854cfc017fc8ac1a5da4437c32360

darcs-hash:20090801221608-dd5a0-b79c4cb9dae4c709210250356f72761edf0487b6.gz

Ignore-this: 6cbc846f666c73086cc28327c2f661e4

darcs-hash:20090726192746-4b9dd-5b35e98747e193994abd00bb53f5c22ded272c0d.gz

darcs-hash:20090525212742-f7d6d-e15e46892fb0e7877526a10a002546629e9e26a3.gz