Updated ruby infrastructure.

* Use a gemset.
* Updated the dependencies.
Updated the targeted version of Omeka.
First pass at transitioning to Omeka 2.0.

The site will load, and the plugin will install. But I haven't checked
any tests.
Fixed issues found while running unit tests.
More updates.

* Removed superfluous __db var on plugin.
* Let the ABC automatically load the hooks and filters.
* Use the new APPLICATION_ENV setting.
* Fix filter method names.
* Click on the write text to create new items.
* Remove plugin broker from tests.
More plugin shuffling.

* Removed plugin.php.
* Renamed theme header hooks.
* Removed plugin class ctor.
Added dependency for the rb-fsevent gem.
Fixed filter functions names and parameters.

Also added in debugging output.
A bunch of changes. Unit tests pass, but are incomplete.

I.e., unit tests pass, but it's still broken.

* Removed the Element Form Display HtmlFlag filter;
* Append the edit control to the output;
* Added a debugging flag for the view utility class;
* Left some debugging output in place :anguished: ;
* The view utility's setEditOptions only takes parameters that you can
  get to;
* getElementText returns an array of matching element texts, since it no
  longer has access to one index;
* getHtmlValue and isMap take an optional $index parameter;
* Removed irrelevant tests; and
* I'm standing in the smoking ruins of this plugin, waiting for the
  elves to come rebuild it.

:finnadie:
Changed Gemfile to use secure connection to rubygems.
Fixed syntax problem in Cakefile.
Updated package.json.
Fixed jslint problems.
Coverage field HTML structure is in place.

This now transforms the current DOM structure to produce a new one.
Got the UI working.

* Updated style
* Updated enableWysiwyg monkey patch.
* Hardened code against getting passed undefined/null for values.
Don't spread the map over the full column.
Don't float over Omeka's header.
Create JSON objects for building the widgets.
Removed debugging output and use jQuery properties.
Changes to debugging utilities.

* fdump also outputs the objects type.
* fstack prints out the call stack.