Need to deepcopy the targets
Support multuple nodes in a single config file

We want to be able to have multiple nodes configured via a single
config file. To support this the config file now supports
an INI like syntax. When a daemon starts it now supports a
--node-name flag (defaults to just vxsnd and vxrd). The config
parser will now do the following.

1) Load all config lines it before before the first INI block.
   This allows for backwards compatability.

2) Load all config lines in a section named "COMMON"

3) Load all config lines in a section that matches the node-name.