Add html_escape note to CHANGELOG
Merge pull request #7308 from amerine/3-0-stable

Add html_escape note to CHANGELOG
Remove warning when using html_escape with Ruby 1.9.

Closes #7430
updating changelogs
CVE-2012-5664 options hashes should only be extracted if there are extra parameters
bumping to 3.0.18
fix tests
remove other gemspecs