Log Message:
lua-inifile: Update to 1.1

Changes:

     * parse now returns an extra table with parse error locations. This
       is only additional information, the parse behaviour itself hasn't
       changed.
     * parse now handles keys before the first section header gracefully,
       returning a parse error instead of erroring.
     * save throws a better error if a provided section is not table-like
       (supports indexing and next)
     * The io backend will explicitly close a file after writing, not
       waiting for garbage collection. (thanks Lukas)