Plone.app.theming

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- Ensure host blacklist utilises SERVER_URL to correctly determine hostname
for sites hosted as sub-folders at any depth.
[davidjb]

- Add test about plone.app.theming / plone.app.caching integration when
using GZIP compression for anonymous
(see ticket `12038 <https://dev.plone.org/ticket/12038>`_). [ebrehault]

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- Add diazo.debug option, route all error_log output through
this so debugging can be displayed
[lentinj]

- Make example Bootstrap-based theme use the HTML5 DOCTYPE.
[danjacka]

- Demote ZMI patch log message to debug level.
[hannosch]

- Upgrade to ACE 1.0 via plone.resourceeditor
[optilude]

- Put quotes around jQuery attribute selector values to appease
jQuery 1.7.2.
[danjacka]

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- Protect the control panel with a specific permission so it can be
delegated.
[davisagli]

- Advise defining ajax_load as ``request.form.get('ajax_load')`` in
manifest.cfg. For instance, the login_form has an hidden empty
ajax_load input, which would give an unthemed page after submitting
the form.
[maurits]

- Change theme editor page templates to use main_template rather than
prefs_main_template to avoid inserting CSS and JavaScript too early
under plonetheme.classic.
[danjacka]

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- Replace the stock "Themes" control panel with a renamed "Theming" control
panel, which incorporates the former's settings under its "Advanced" tab.
[optilude]

- Add a full in-Plone theme authoring environment
[optilude, vangheem]

- Update IBeforeTraverseEvent import to zope.traversing.
[hannosch]

- On tab "Manage themes", change table header to
better describe what's actually listed.
[kleist]

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* Prevent AttributeError when getRequest returns None.
[maurits]

* Calculate subrequests against navigation root rather than portal.
[elro]

* Supply closest context found for 404 pages.
[elro]

* Lookup portal state with correct context.
[elro]

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* Patch App.Management.Navigation to disable theming of ZMI pages.
[elro]