Fixed: the error causes by the last change on Safari
fixed: removing prev filtered canvas. modified: single view ui
IE10 fix (IE10 cannot access data-* by dataset property)
Fixed: now stripHtml() takes undefined/null arg.

Win8 Metro IE10 (Metro only, not Desktop) does not support prompt. Actually, prompt() returns undefined.
added "Delete a photo" feature, also fixed the deprecated iDB support fix.
removed the optional version number, because BB10 fails to set version when the 2nd arg is set for open().
Preparing XHR2/CORS

TO DO: Need to set up a server-side
replaced a photo for the sample thumbnails
Spelling fix
Merge pull request #6 from girliemac/coremob