Merge pull request #7 from alice/master

Ignore hidden iframes; Enforce limit on number of results
Focus properties
Show multiple obscured-by elements; more sophisticated text version of element shown
Merge pull request #8 from alice/focusProperties

Focus properties
Use eval() to inject the content scripts into the main world context if content scripts can't be used
Update accessibility-developer-tools
Check for contentScriptInjected in ExtensionAuditRule
dmazzoni review comments
Merge pull request #9 from alice/eval

Eval code in main world if content script can't be injected
Update README.md
Update README.md
Update README.md
Bring accessibility-developer-tools up to date
Bring externs and accessibility-developer-tools up to date with latest closure versions
Bump version number in manifest
Use ownerDocument.baseURI instead of baseURI
Bring accessibility-developer-tools up to date
Remove URI fragments when running eval from sidebar.js