Default only text string exists, via localized translation a wiki admin
can add his/her own (html) version.

Done:
Cleanup of the mail text signature.
The signature is deleted from the txt files and moved in to lang.php
Mailer.class.php updated to insert the signature

Fix:
- Cleaner text
- no more "-- "  "--" "---" "----" problems.
- mailwrap.html is not needed anymore an can be deleted (?)

Changed files in all languages:
lang.php
mailtext.txt
password.txt
registermail.txt
subscr_digest.txt
subscr_list.txt
subscr_single.txt
uploadmail.txt
pwconfirm.txt
showrev.txt

delete?:
mailwrap.html

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

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

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: 346120de6a0e8dfd347bc737842b769d

darcs-hash:20090213074120-22994-4cda6911fc83c916b837848f47a5d1ad231b6157.gz

darcs-hash:20090117185001-22994-fc748e4a1c4b4c8ef48a322bdf0b474ccd4e3be7.gz

darcs-hash:20081031202035-919a1-1155f22a8f5b76b752532e9d5473a8874eadc780.gz

darcs-hash:20081026220328-919a1-e5585c1bf8239fcdb460c7b8099c635b58f44e2d.gz

darcs-hash:20081026185024-919a1-6f94452d8369b799b9a81f6d909baa3c53a157c9.gz