v0.3.0

Added

• Add a new manual_patch binding for allowing users to apply manual patches
• Add a window.title field in the configuration that sets the window's title

Changed

• Serialize cache file as JSON
• Startup errors are displayed with native message boxes
• Use structopt instead of clap for CLI parsing
• Switch to tokio's single-threaded runtime
• Multiple patch servers can be specified in the configuration file.
  A new web.patch_servers list field replace the web.plist_url and web.patch_url
  fields in the configuration. A new optional web.preferred_patch_server has also
  been added.

Fixed

• Prevent multiple instances of the patcher to update the game at the same time