HQLPARSER-43 Incorrect handling of string literals containing single quo...

...tes

Single quotes embedded in a string are actually represented by two single quotes.
They are properly recognized by the lexer grammar but the output token should contain a single quote not two. (See spec doc Java Persistence 2.1, Final Release section 4.6.1)

Jira: https://hibernate.atlassian.net/browse/HQLPARSER-43

(this fix is needed for 1.0.x too, backport is in anistor:HQLPARSER-43_10x)