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).
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
History was removing ?query part of the url, which could break
exhibits that are generated on the fly based on a query fragment.
Removing just the hash is sufficient to let history's html4 emulation work.
Google spreadsheets importer was treating :single as a value type
which confused lens rendering
Merge pull request #37 from karger/2013-09-04_GoogleSpreadsheets

Google spreadsheets importer was treating :single as a value type
firefox has introduced "mixed active content blocking" which means
that a web page loaded with https will refuse to load http: script
links.  At the top level this can be fixed by a user choosing suitable
relative urls for exhibit scripts
(//api.simile-widgets.org/exhibit/...)  .  However, the map and time
extensions load other scripts whose urls were hard-coded to http.
Fixed by setting these urls to https if the document url is https.
updated demos to html5
Merge pull request #41 from karger/2013-09-23_https

Modified extension scriptloaders to tolerate firefox active content blocking under https
Merge pull request #42 from karger/2013-09-24_html5_demos

Updated demos to use html5 (data-ex) syntax from old (ex:)
HTML table importer: if cell is empty, don't assign empty string to field.
exporter.js assumed self-describing data which broke tsv export.
Tabular data formats require a constistent global (ordered) list of
properties to export.  Modified exporter.js to provide this and tsv.js
to rely on it.  Also fixed a small bibtex.js bug
Duplicates properties overwrite instead of merging, which is
inconsistent with how exhibit loads items.  Revised so that
second load will override if attributes are given explicitly in
the second occurrence, but will not reset attributes to default values
if they are missing in the second occurrence.
Added "id" as a core property in the exhibit database
Expand/collapse icon for facets was tiny; now click on title works too.
Warn instead of halting when one component suffers exceptions
Merge pull request #36 from karger/2013-08-24_history_query

History was removing ?query part of the url, which could break
Merge pull request #43 from karger/2013-09-25_html_table

HTML table importer: if cell is empty, don't assign empty string to field's value