bugfix: cloudfacet was overwriting elt class instead of appending
Removed jquery.browser usage (deprecated) along with IE6-specific code
(since Exhibit doesn't work with IE6 anyway).
Modified persistence.js to use more modern dom api.  In particular
this means it will properly incorporate <base href> directives.
Merge pull request #32 from karger/2013_08_23_resolver

Modified persistence.js to use more modern dom api.  In particular
Merged demos HTML and fixed cloud facet
Merge pull request #34 from eob/cloudFix2

Cloud fix2
Merge pull request #31 from karger/2013-08-22_bubble

Removed jquery.browser usage (deprecated) along with IE6-specific code