Eric Davis 6e529f82a7 Make the Gantt zoom images more accessible
* Correct the alt text
* Add text links next to the images
* Size the images in em to support browser scaling

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@3757 e93f8b46-1217-0410-a6f0-8f06a7374b81
2010-05-26 22:48:35 +00:00
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