When using the PageStore, opening a database failed in some cases with a NullPointerException if temporary tables were used (explicitly, or implicitly when using large result sets).

git-svn-id: http://h2database.googlecode.com/svn/trunk@5695 e6896862-9d19-0410-bfb3-e9fa5d50e656
Reduce log output

git-svn-id: http://h2database.googlecode.com/svn/trunk@5696 e6896862-9d19-0410-bfb3-e9fa5d50e656
Databases created with version 1.3.175 and earlier that contained foreign keys in combination with multi-column indexes could not be opened in some cases.

git-svn-id: http://h2database.googlecode.com/svn/trunk@5697 e6896862-9d19-0410-bfb3-e9fa5d50e656
If a database file in the PageStore file format exists, this file and this mode is now used, even if the database URL does not contain "MV_STORE=FALSE". If a MVStore file exists, it is used.

git-svn-id: http://h2database.googlecode.com/svn/trunk@5698 e6896862-9d19-0410-bfb3-e9fa5d50e656