Minor fixes

Minor fixes corresponding to tests

Pass file in -f option

file is now passed in -f (--file) option

Initial version

Options

-i, --indent - string used for the indentation of the declaration (spaces, tabs or number of spaces)

-o, --openbrace - the placement of open curly brace, either end-of-line or separate-line

-a, --autosemicolon - insert a semicolon after the last ruleset