update to ANTLR 4.13.2

[daersc]

The Files generated with ANTLR 4.7.2 cannot be used with later versions of ANTLR (starting with version 4.10).

See ANTLR 4.10 Release Notes:

ANTLR not only generates recursive-descent parsers; it generates a state machine called an augmented transition network (ATN) in serialized form as a bunch of integers stored in the generated parser and lexer files. This serialization format was changed for 4.10 to remove a size limit on the supported ATNs. See antlr/antlr4#3591.

The key point here is that we changed the version number stored inside the serialization format and so, in order to use this new version of ANTLR, you must regenerate all of your lexers and parsers using the 4.10 tool and then use the new runtime. Parsers generated with 4.10 or not compatible with previous versions of the runtime.

Solution: Update ANTLR version and re-generate sources.

[ottobackwards]

Thank you! I'll merge and do a release

[ottobackwards]

<dependency>
    <groupId>com.github.palindromicity</groupId>
    <artifactId>simple-syslog-5424</artifactId>
    <version>0.0.18</version>
</dependency>