v1.1.0

Among a few updates to the Readme, this release contains the following changes:

• Command execution support for both Linux and Windows
• As a direct consequence of the former, the bare pseudo-pty shell for pre-Windows10 Build 17763 has been removed, as directly executing cmd yields a saner shell
• Improved process handling to avoid cluttering the target with dangling processes
• Removed hard coded ssh public key to ensure individual credentials when running make
• Added raw build target for easier cross-compilation to different architectures (credits to @6E006B for the idea)