app-text/jabref: Fix antlr dependency now that Java 8 is addressed

app-text/jabref: Fix antlr dependency now that Java 8 is addressed

This really depends on ANTLR 2 and 3. The fix applied in bug #547934
was somewhat bogus as 4 wasn't being used at all except for its
bundled version of 3. It is a non-issue now that 3 has a workaround
for Java 8.

Even though 3.2 depends on 2, it is unusual for a third party to
depend on both. Upstream actually uses 3.4 so 3.5 would be a closer
match but using 3.2 means you won't pull in two different versions of
stringtemplate.

Package-Manager: portage-2.2.26