Whitespace changes
New local_meta_dir config entry can be used to specify value of --meta-dir

The command-line argument overrides the value specified in the config file.
Whitespace changes
Patch to local_meta_file to allow overriding with empty value
Merge branch 'development' of gh:NewsNow/brackup-nn into development
Bugfix
Renamed --create-new-inv to --allow-new-inv
Re-commit change accidentally reverted