Because we do not want the database name to be optional with a
placeholder (/*DB*/) in the statement that creates the database, since
it is not actually optional there - as opposed to when creating tables.
Change-Id: I05351d76d95071492d763758a11454f219524510
Two important related changes:
1) sorted/mysql now takes into account the host given in the config
2) the required tables are now automatically created by NewKeyValue
http://camlistore.org/issue/263
Change-Id: I0043f36edb0630d6484148508d3a1e08c8e88a94