Improve BaseX server test for Windows (#587)
Improve BaseX server test for Windows (#587)


* Replace slash with backslash
* Run BaseX batch files in child process
xspec/xspec,AirQuick/xspec,markdunnoup/xspec,AirQuick/xspec,markdunnoup/xspec,markdunnoup/xspec,xspec/xspec,xspec/xspec,AirQuick/xspec