Workaround for fetching spine items with encoded URIs
If clientRects are empty, try next element
Merge pull request #20 from irls/hotfix/empty_client_rects_next

If clientRects are empty, try next element
Merge pull request #21 from irls/hotfix/toc_links

Workaround for fetching spine items with encoded URIs
minor
t commit -aMerge branch 'develop' of https://github.com/readium/readium-shared-js into develop
minor commented code addition (was testing UTF8 ajax requests with Firefox)