Generate parser classes automatically with javacc

Extend ant build.xml and maven pom.xml to generate classes from where.jj.

Delete javacc generated classes from git.

where.jj moved to src/main/javacc to match maven directory structure.

src/main/javacc added to Eclipse .classpath.  The Eclipse JavaCC
plugin must be installed and run by hand to generate classes from
where.jj inside Eclipse.
Allow encrypted time to be 30x slower in unit test

Unit test TestCryptoFilter.testScrambledFileSpeed still fails
sometimes on CloudBees CI server with 20x slower allowed.
Merge branch 'master' of ssh://git.code.sf.net/p/csvjdbc/code

Conflicts:
	.classpath
	build/build.xml
	pom.xml
	src/main/javacc/org/relique/jdbc/csv/where.jj