EmptyLines cop does auto-correction.
Merge pull request #624 from dblock/autocorrect-empty-lines

`EmptyLines` cop does auto-correction.
Fix crash when loading an empty config file
accept dot position on same line for trailing style
Merge pull request #630 from vonTronje/restrict_dot_position_check_to_multiline

accept dot position on same line for trailing style
Add an extra example