[#9129] Add refreshURIs call as part of clearing the site cache
Error property added plus getter and checker for it
modError is instantiated when sending fails
Error getter renamed
Clear modX::user on init context

Possible fix for http://bugs.modx.com/issues/10221
Add upload functionality directly to package manager grid
remove commented-out line for ocd
Add new processor to allow custom core_path location
Restrict upload to zip only, and switch to new processor
Added OnElementNotFound system event
- Show events on new plugin page
- reverted last commit, as already fixed
fix boolean and numeric values for rendering

empty($params['key']) does not work for string "false"
add the legacy multiple select drop down option
Allow filtering of namespace by request on lexicon page

Like https://github.com/modxcms/revolution/commit/58ed1e52057ba71d020ffc4019778860958395e0 this enables users to filter on namespaces by request on the lexicon grid

Something like http://domain.com/manager/index.php?a=71&namespace=babel

This is useful since you can share a link to a specific lexicon e.g. from the dashboard, so clients can easily find it.
Extending #458 'open in new window' feature with optional Shift modifier. Shift + click in resource tree to edit in new window for users with no middle mouse button (e.g. Apple magic mouse, trackpads, etc)
Updated processor instantiation
Add note about grunt not found
Prevent content duplication when using [css|js|html]To[Head|Bottom] output filters that call modX.regClient*
Fix for #10827 removes C:\fakepath\ from filename during uploads in MODX Resource Browser