Support renaming case sensitively in `DC_Folder` (see #5522)
Always load MooTools in debug mode (see #5518)
Remove the `pathconfig.php` file in the install tool if the path does not match (see #5428)
Preserve the file mounts if a user enters a wrong password (see #5529)
Support `url()` with single quotes in the Combiner (see #5253)
Add the `File::resizeTo()` method (see #3883)
Enhance the `File::__get()` method with more image parameters (see #3760)
Use the module names as back end wildcards (see #5314)
Use the translated labels for fieldset wrappers (see #5314)
Add an option to purge the system log to the maintenance module (see #4701)
Insert tags now support flags (see #4717)
Skip links to news/events if the target page has not been published (see #5520)
Update all language files
Set the release date and bump the version numbers
Merge branch 'hotfix/3.0.6' into develop

Conflicts:
	system/config/constants.php
	system/docs/CHANGELOG.md