Version 2.2.0 (Hotfixes)

Version 2.1.0 broke a number of features, particularly on Windows. This release ties up those loose ends, actually solves #10, and also:

• Adds a build timeout for unresponsive robot controllers (45 seconds by default)
• Adds the --build-timeout-sec flag for specifying a custom build-timeout
• Renamed --timeout-ms to --host-timeout-ms
• Makes ftc_http now available on crates.io
• More descriptive error messages were added
• ftc_http is now aware of (and can perform basic validation on) Java package ...; declarations
• Some refactoring, of course

IMPORTANT NOTE: This update includes breaking configuration changes! It is recommended that you run ftc_http --restore-defaults after installing this new version!