plugin options for exploding

[kjdon]

In the exploding script, there are two options, collection and plugin_options, which are not shown in gli. Make gli pass the appropriate values to these options, in secret :-)

collection should be the colleciton name, and plugin_options should be a space separated list of all options that the user has configured in the plugin in the plugin list. Option names need to start with -, eg "-optionA value -optionB value"

[kjdon]

Either make GLI pass the plugin options to the script, or have a new flag which will be silently set by GLI so that exploding looks in the config file to find plugin options.

[kjdon]

Added -use_collection_plugin_options flag to explode script. GLI now sets -collection option and this new option, so the plugin options from the config file are read in.