This is a first working version of postgresql::server.
It includes a very simple test manifest, which has
been tried out on CentOS6 and Ubuntu 10.04; initial
tests were successful both from a clean state and
for subsequent runs.
Includes a new fact called 'postgres_default_version',
which detects what the default version of postgres is
for a given OS. This is needed because some of the
commands and directory names include this version string.
Current implementation *only* supports managing the
system default version; in the future it would be nice
to allow the user to explicitly specify a postgres version,
but that isn't yet supported.
The "postgresql::server" class includes a call to postgres's
initdb command on redhat systems, because they don't do
this automatically when the package is installed.
