dbVersion only returns nn.n version without any additional info
added new dbVersionNumeric that follows the nnNNnn type of format, eg
90605 or 130006
Added new dbVersionInfo where all the pg_version returned array elements
can be checked. Has a strip override for 'server' version to no strip
additional info
dbVersionInfoParameters returns an array of all possible parameters that
can be called.
Not that if the whole info block is needed pg_version($db->dbGetDbh) is
recommended for now.
Also dbCompareVersion does not call the dbVersion but calls the
functions __dbVersion
40edbe271d