signup 4.6.x-1.1

This will probably be the last ever release of signup.module for 4.6.x core. Support for this version is no longer going to be maintained.

Changes since 4.6.x-1.0:

• #123648: Fixing improper use of links in watchdog() messages
• #78559: Fixing numerous bugs in signup translation:
  • incorrect use of format_plural()
  • badly formed t() strings with HTML and other goo inside
  • wildly stale (and sometimes missing) .pot files
• #91284: Signup doesn't respect privacy: db_rewrite_sql() missing
• In the (evil, hard-coded) HTML for displaying signup information on user profile pages, we were leaving an H4 open by accident.
• l() calls check_plain() for you, so we were double-escaping output.
• #107154: Fix signup_sign_up_user() to prevent the same user from signing up more than once for the same node.
• #128021 by adrinux: Convert html br to xhtml and use strong instead of b
• Removed double-escaped output on signup form_group() title.