Change `const` use to `var` for Safari 9 (on iOS)

Safari 9 in iOS does not support the use of `const` in strict mode. Unfortunately, some of us are stuck with Safari 9 due to not being able to upgra

Change `const` use to `var` for Safari 9 (on iOS)

Safari 9 in iOS does not support the use of `const` in strict mode. Unfortunately, some of us are stuck with Safari 9 due to not being able to upgrade.

I am a big fan of progressive enhancement, but because all javascript code is packed together and sent off to the client, this small incompatibility breaks all javascript for safari 9 browsers. Switching these two keywords makes everything work again.

There are no other uses of `const` in the codebase as far as I can find. This change has little to no impact on anything else, but slighlty extends the range of supported browsers.

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some small fixes for PSR2

split changelog classes into their own namespace

The remaining functions in inc/changelog.php should be moved into a
utility class.

remove debugging stuff from detail.php

we haven't needed this in years

translation update

�� Use json for the response to dw_locktimer

✨(dw_locktimer) plugins may reuse to add fields and callbacks

Plugins may want to add further fields to be present when saving drafts.
Plugins may want to execute some js functionality that should b

✨(dw_locktimer) plugins may reuse to add fields and callbacks

Plugins may want to add further fields to be present when saving drafts.
Plugins may want to execute some js functionality that should be timed to
the saved draft/refreshed lock.

If a plugin does another init() to attach the dw_locktimer to its own editor,
then the default callback would be added a second time, causing unexpected
and undesired behavior.

This includes the changes from the following commits:
6ef45cc1c69591eb7facf381ef4bcf88e3aaa1c0
6ca947f3ad455df4fca1a3076b174b7b2688bd89
0fff419cc95b9783dd33ab02ffb3bd7806d5fcde
87bed8b672a166d073948bcb4ca49aaa81dc880c

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�� (editor) draft status is semantically not part of the toolbar

This change is useful for plugins that may want to implement their own toolbar (and thus hide the
default toolbar), but still would l

�� (editor) draft status is semantically not part of the toolbar

This change is useful for plugins that may want to implement their own toolbar (and thus hide the
default toolbar), but still would like to let the locktimer set the draft status.

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removed safemode hack

Safemode has been removed in PHP 5.4.0. We finally no longer need to
deal with this insanity.

do not initialize the configuration in constructor

The class gets instantiated for showing the admin menu. There's no need
to always load the whole configuration there. It's only needed when the
Con

do not initialize the configuration in constructor

The class gets instantiated for showing the admin menu. There's no need
to always load the whole configuration there. It's only needed when the
Config screen is actually shown. So loading it in handler() instead
should be good enough.

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remove support for _cautionList

an empty class is valid, only truly no class is bad

show other errors in undefined settings again

This reestablishes the mechanism of adding errors as Sepcial classes to the
undefined list.

make undefined settings output work again

removed fixme that had been fixed

clean settings data

removed constructor parameters we never use

pass correct array in event

readd PLUGIN_CONFIG_PLUGINLIST event

do not drop undefined settings when saving the configuration

fix numericopt setting

In 55a4f137738ef5718cc047e5fb802e1c6d0a409f a bug was introduced that

* forced resaving the config even if it hadn't changed
* prevented setting the value to an empty string

fix numericopt setting

In 55a4f137738ef5718cc047e5fb802e1c6d0a409f a bug was introduced that

* forced resaving the config even if it hadn't changed
* prevented setting the value to an empty string once set

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improve update() comments

make abstract test abstract again

fixed updateSettings iteration

make the onoff setting more boolean

We now parse true and false as well as some common strings