(now actually compiles)

commit new icons(downloaded from 2011-09-15 release from http://mtg.pifro.com/viewtopic.php?f=26&t=1457)

 * added simple history browsing with up/down arrow keys
 * show whether MessageCtrl has focus
 * don't draw lines between input and resulting errors

commit latest version (downloaded from 2011-09-15 release from http://mtg.pifro.com/viewtopic.php?f=26&t=1457)

 * Added after_reading function that is called by Reader after reading a complete object.
   This generalizes Packaged::validate, which is now also called via this mechanism.
 * Use a single 'last_modified' Age, instead of a separate one for scripts. The counter should now only go up by 1 for each Action performed. In theory the counter could also be made local to ScriptManager.

 * added some utility functions for working with ScriptDefaults

remove last_change from MultipleChoiceValue. It is now stored in the action, which makes more sense.

 * use ScriptValueP, wrapped in AnyValue, instead of the specialized value types
 * serialize these values using script syntax.
 * However: #ifdefed out for now, because I first wanted to commit the following change:

This requires a change to handling of last_change of MultipleChoiceValue. Instead of storing it in the field, it is now just part of the action. The action therefore has to be passed to Value::update.

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TODO: be consistent with thumbnail generation, where the value is converted to canonical form first.

Added ScriptDefault type, a wrapper that indicates that a value is in the default state. This will replace Defaultable<>

formating; explicitly return nil from text_to_color on failure. The latter is needed because a warning will be added to 2.0.1 about missing returns (not yet in trunk)

use correct border style instead of always using wxBORDER_THEME. This issue is fixed in wxMSW 2.9, but we are not ready for that yet.