Handle missing newlines or trailing spaces at end of file

[jhorstmann]

I think the parser currently fails if the last line in the feature file does not end with a newline. There are two possible solutions:

• Change the grammar to handle EOF same as EOL when the token can appear at the end of the file
• Wrap the reader so that it automatically appends a missing EOL at the end of the file

[lukasniemeier-zalando]

👍

[lukasniemeier-zalando]

Did he misunderstand your "This does not fix #8" sentence? 😆

[lukasniemeier-zalando]

Together with #33 this is a very good candidate for a next release. Proposal (1) sounds better (antlr/grammars-v4#772) - but I guess proposal (2) may be a quick-win?