[Nightly] Update v0.8.4709a — Grey Hack Steam update #17150

Changelog - Exploit System Expansion: New vulnerability added that can return any of the following partial objects: pcomputer, prouter, pshell, pfile. NOTE: this system will be adjusted and changed in future updates. These partial objects have access to a limited number of methods of their normal variant. The methods that are accessed on each partial object depend on the vulnerability. metalib.overflow needs to be called like any other vulnerability to know what type of object it returns and what methods it can access. In the case of obtaining a pfile, metalib.overflow must be provided with a path to the desired file - Added option to choose the version of the library that you want to install from the official repository. For example apt-get install libssh.so=1.0.2 NOTE: This option will be extended to player-created repositories in future updates. - To change the version of a service yo...