Amends the tool installation to use game install directory and correctly populate actions. Tools previously used an undocumented/unpopulated/inaccessible global install directory. This has been changed to use the game's install directory. Uninstall scripts are also now executed for tools when the game is uninstalled.
Fixes#414
Sends a keepalive/heartbeat signal across RPC while a game is running. Server-side this enables the ability to manage play session state with realtime information instead of hoping that the client will stop the play session. Keepalives are tracked in server cache allowing for future potential horizontally-scaled server instances.
RunWrapper scripts were defined as a script type but never executed. This adds full execution support during game launch, with proper game running state tracking and cancellation/stop support including child process cleanup.
Tracks files created in the game's install directory when the install script is run. This results in the ability to delete redist files when the game is uninstalled.
Tasks are broken down into major and minor tasks. Major tasks are like install game, redistributable, or tool. These are reported as individual tasks in the download queue. Minor tasks are running of a script, downloading saves, extracting/downloading, etc.
Scripts are now grabbed from a separate request. This ensures that the contents of the scripts themselves don't muddy up the manifest model. This also opens up the potential to allow clients to redownload scripts without redownloading the entire game/tool/redist.
