shib_auth 6.x-4.0-rc4

4.0-rc3 contained a grave bug, this release only corrects #1076942: Fatal error: Only variables can be passed by reference in /sites/all/modules/shib_auth/shib_auth.module on line 278

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For reference, release notes for 4.0-rc3 is repeated:

This is a release candidate. Community tests are very much appreciated.

Upgrade instructions:

1. Read the documentation
2. Ensure that you can login as administrator using a password. Upgrading/configuring the new version might fail if you're using the module to log in.
3. Back up your database.. We can't stress this enough.
4. After overwriting module files, run update.php (It's also necessary if you are upgrading from 4.0-rc1.)

4.0-rc2 version was tagged, but a couple of bugs were left out, therefore it was not released.

Bug fixes since -rc1:

• Account linking fully rewritten
• #1062222: Redirect after logout
• #1041250: Custom username conflict while linking existing account to shib identity
• #1057214: get_custom_data form accessible to non-shib_auth users including anonymous
• #1040552: Linking existing account to shib identity deletes profile (module) field data
• #1044180: Version mismatch in module info file
• #778074: shib_auth doesn't call user_module_invoke('login')
• Properly deny blocked users

New features since -rc1:

• #1057204: Abort or Shibboleth/Logout option on get_custom_data form
• More code standardization and comments
• Enhanced DEBUG a little bit

A big thanks to everyone who reported bugs, offered patches or otherwise contributed to the development. Testing is very much welcome.