Added small improvement to the _remove_evil_attributes function

Signed-off-by: brian978 <dbrian89@yahoo.com>
Signed-off-by: Wes Baker <wes@wesbaker.com>

Conflicts:
	system/core/Security.php
Updating User Guide for 2.1.4.
Revert "Updating User Guide for 2.1.4."

This reverts commit c5f99fdcc5c4a918b5b8fe3ddbd56ab25ad1c22b.

Signed-off-by: Wes Baker <wes@wesbaker.com>
Fixing a typo in the user guide.
Correcting URL for search box.
Fix changelog errors
Fix download link for latest version
Fixing download links for old versions.
Fixing two broken links in the User Guide.
Fixed incorrect documentation for decimal validator
Suhosin compatible emails

Fix problems with Suhosin and sending emails trough php mail()
Merge pull request #2584 from PlamenVasilev/2.1-stable

Suhosin compatible emails
Merge pull request #2577 from chrishepner/2.1-stable

Fixed incorrect documentation for decimal validator