LP1204123 opensrf.settings reload file option

LP1204123 opensrf.settings reload file option

opensrf.settings API calls

opensrf.settings.host_config.get
opensrf.settings.default_config.get

now sport an additional "reload" boolean parameter.  When set, the settings
file (opensrf.xml) will be reloaded from the file system to pick up any
changes which have occurred since the last load/reload.

Signed-off-by: Bill Erickson <berick@esilibrary.com>
Signed-off-by: Jason Stephenson <jstephenson@mvlc.org>