improve AggregateFunction javadoc a little

git-svn-id: http://h2database.googlecode.com/svn/trunk@4966 e6896862-9d19-0410-bfb3-e9fa5d50e656
fix test on case-sensitive filesystem, patch fromn Davide Cavestro

git-svn-id: http://h2database.googlecode.com/svn/trunk@4967 e6896862-9d19-0410-bfb3-e9fa5d50e656
improve testFileLockSerialized - fails on slow machines.
Replace Thread#sleep() with CountDownLatch
Original patch by Davide Cavestro, with some modifications by myself

git-svn-id: http://h2database.googlecode.com/svn/trunk@4968 e6896862-9d19-0410-bfb3-e9fa5d50e656
Issue 501: "CREATE TABLE .. WITH" not serialized, patch from nico.devel

git-svn-id: http://h2database.googlecode.com/svn/trunk@4969 e6896862-9d19-0410-bfb3-e9fa5d50e656
Merge branch 'svnmaster' into h2-patch

Conflicts:
	h2/src/main/org/h2/table/TableBase.java
	h2/src/test/org/h2/test/db/TestTableEngines.java