Improvement to run_bash.cmd

[ildar-shaimordanov]

Replace the existing runner script run_bash.cmd with the following one:

Benefits:

1. allows to run flinux from the arbitrary place
2. returns to the same place before running the script

@echo off

setlocal

pushd "%~dp0archlinux"
..\flinux /bin/bash

endlocal
goto :EOF

[RaeesBhatti]

Nice, thanks. I wonder where the run_bash.cmd file is in the project source.