Change the order of label file selection
Change the order of label file selection

If the environment variable `DISPASS_LABELFILE' exists, use it.
Otherwise, if the file in `$HOME/.dispass/' doesn't exist and either
environment variable `XDG_DATA_HOME' or `APPDATA' exist, use that.
If none of the above are true, use `$HOME/.dispass/'.

ryuslash/DisPass