Include PostgreSQL and H2 in our package

These two databases are somewhat popular for a Gerrit installation,
and their drivers don't take up that much space.  We might as well
include them, along with commons-dbcp and commons-pool, so there
is less to download and install when setting up a new Gerrit server.

Change-Id: I389d5b5d7aa8fdb03460193bcba834fe74a9bb61
Signed-off-by: Shawn O. Pearce <sop@google.com>
4 files changed