Remove inc/lang/.htaccess as inc is already protected

When a remote resource exceeds the fetchsize but the remote server does
not return a Content-Length, we read only the fetchsize amount of bytes
but failed to detect that this was a partial read, thus a partial
resource got cached.

This fix will read fetchsize+1, which will then be correctly determined
as too big and thrown away.

Fix Locked-Page not showing page content

While refactoring into inc/Action/Locked, the fall-through call
to html_edit was missed.
See 952acff9

This removed the edit box from the locked page, which is needed
for users to get the page source or by etherpad lite plugin.

This change re-adds the call to html_edit for the locked action.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>

Translation update (ar)

Translation update (ru)

from http://mike.teczno.com/JSON/JSON.phps

This fixes a problem on PHP 7.2. However ultimately this class should be
dropped in favor of the native json_decode/json_encode functions.

This should fix a warning in PHP 7.3

Add missing jquery content

removed safemode hack

add logic if the server uses unlimited memory settings in is_mem_available()

Fix .htaccess files for Apache 2.4 (and 2.2)

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.

Refer to module by suitable file name (mod_*.c).
Test for mod_authz_core.c (instead of mod_authz_host.c) to properly
detect Apache 2.4 and avoid false positive for Apache 2.2.

 (Draft) Fix exception when actually viewing a draft of a page

Not sure why this didn't show up sooner 

Better draft handling

If memory is set to unlimited, then memory_limit will be -1, so set this to true in this case.

Add unittest for deleteUsers remote API call

Remote API calls should have some unittest as this test would have caught
the bug that was introduced in 96d46bf4
and fixed in ebf17449

The parameters passed to triggerUserMod() were wrong.

Translation update (no)

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:
6ef45cc1
6ca947f3
0fff419c
87bed8b6

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.

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

Translation update (fy)