1. Fixes #0000218: Error reporting in configuration sections is broken. 2. Implemented fully-featured configuration value validation during saving (just put serialized field option array into "Validation" field in ConfigurationAdmin table for given variable). Even "required" check works. Test on "SessionTimeout" variable.
1. Fixes #0000210: "Browse Site" modes buttons are not working in Admin SSL mode. 2. Added ability to refresh whole administrative console after change of configuration variables. 3. Skin is now recompiled, when SSL modes are changed (SSL->NON-SSL and via versa). This prevents broken lock icon in browser.