w3c validations: added alt to image tags, removed errant body tag
remove Stray end tag span
The element button must not appear as a descendant of the a element
The language attribute on the script element is obsolete.
Element script must not have attribute charset unless attribute src is also specified
w3c validations updates
Merge pull request #1075 from modilabs/w3c-validator

W3c html validations updates