Merge branch 'release-2.2'

* release-2.2: (40 commits)
  Bump version for 2.2.6-pl
  [#9178] Use PHP time for valid check in modDbRegisterMessage::getValidMessages()
  [#9165] Fix modError::hasError false positives when loaded via getService
  [#9029] Remove modRequest->loadErrorHandler dependency in runProcessor
  [#9156] Fix reload data for rendering multi-value TV types properly
  Prevent re-mapping custom Policies and Policy Templates
  [#7916] Fix Area functionality in Element Properties and Property Sets
  [#9080] Disable allow_tags_in_post System Setting on upgrade
  Add configcheck warning for allow_tags_in_post settings enabled
  fix css misprints
  Remove recursion in onCellDblClick() modx.grid.local.property.js
  Updated Dutch lexicon
  Remove unnecessary connector call on login tpl
  Update phpdoc comment
  Image optimization applied across distribution (changelog entry)
  Image Optimization
  Fixed copyright 2011 to 2012
  [#9006] Fix ImageMagick which convert issue (PHP 5.3.2+)
  CS translation of updated strings in Setting Lexicon
  [#9080] Avoid filter order compromises in modX::sanitize()
  ...