Added error handling for empty statement.

Signed-off-by: matematik7 <domen.ipavec@z-v.si>
Changed colonFormat rule behaviour for align a bit.

The alignment now resets after nested ruleset.

Signed-off-by: matematik7 <domen.ipavec@z-v.si>
Added 'exact' and 'atleast' options to braces rules. Added isSpacesOnly helper.

Signed-off-by: matematik7 <domen.ipavec@z-v.si>
Fixed major issue with singleLinePerSelector that had problem with comma separated selectors.

Signed-off-by: matematik7 <domen.ipavec@z-v.si>