Removing _kickstart_option in favor of _normalize_options method to
detect and replace relative paths with absolute ones. Dictionary with
changed options lands as a commandline switches for fs-uae during
execution.
To give user a possibility to choose what archiver he can use another
options was introduced for cd32 and archive wrapper modules. This option
will indicate what archiver should be used for compressing the save
state directories.
Also, new command was added to utils - run_command which is an
generalized subprocess.call function.
Requirements is now added with module six, which was needed to detect
string-like objects in sane way.
