agents

1. Fixes #0000301: Unable to view/change category owner in administrative console.

2. Thesaurus section removed from simple interface preset.

3. In case if 404 template was parsed during event execution, then parser wasn't initialized.

4. Type error in title presets fixed.

INP-251

1. Fixes #0000265: Update Icons in Admin

2. Add "Width" to columns

3. Minor Cosmetic fixes

INP-222

1. Bug #0000159: Prevent of Execution of System Files of files other, then "index.php" and "admin/index.php"

2. Adding DEFINED FULL_PATH security-check

INP-129

INP-183

1. Fixes #0000171: Automatic Images Folder Cleaning.

2. Errors about array accessing problems from glob function during config cache rebuild.

3. Ability to add agents disabled by default.

INP-139

Releasing version 'branches/5.0.x' (copy from 'branches/RC')