Gowut v0.8.0 public release

Changes and new features in v0.8.0:

• Significant event system improvements.
  • Event types are now categorized. This category can be accessed with EventType.Category(). Events that existed before fall under the ECAT_GENERAL category. These can be used/added to any components.
  • 2 new event types in the ECAT_WINDOW category: ETYPE_WIN_LOAD and ETYPE_WIN_UNLOAD. These can be used to detect the window load and unload events. They are to be used for Window only.
  • A new event type in the ECAT_INTERNAL category: ETYPE_STATE_CHANGE. This is an internal event type which is related to state changes in component internals such as changing selected tab (TabPanel) or expanding/collapsing an Expander.
    These internal events usually have a parent event designating the source sub-component (such as a tab component of a TabPanel or the header component of an Expander) and the mouse coordinates for example.
• Event sending from clients are now asynchronous (instead of synchronous). The GUI Server implements proper RW locking.
  Component re-rendering is still synchronous (to avoid browser specific DOM rendering errors).
• Server now has an AddStaticDir() method which can be used to register a folder whose content will be served (recursively) by the server when requested.
  For example you can place your images, custom CSS files and any other static content in a folder, tell the Server about this folder with the AddStaticDir() method,
  and you can reference these files in your components.
• A new component: Timer. You can use this to generate a timed event or a series of timed events periodically.
  Practical uses include refreshing a component periodically, or checking if a Window is still open.
• Set a max age for the gwu session id cookie (to preserve session id after browser restart).
• The 'Showcase of Features' example app has been updated to demonstrate the new features.
• Other minor changes, improvements and more optimization.