updated the extractor interface and created an xpath extactor.
EBC-167: adding admin origin address to admin configuration, modify config to add new config field, modify request model to pull config admin origin data. Run unit test, add a couple of fixtures to some test for schema validation failure
updated the interface description
EBC-167: adding line 2,3,4 to configuration for adminOrigin, fix white space in system.xml
added a default operation type extractor.
removed the pricing feed's old extractor model.
added an abstract class for the feet type models to extend.
EBC-168: starting to work on order search api call in eb2corder modules, this is not yet completed, will finish working this tomorrow.
add an initial queueing model that doesn't do anything.
started a helper with a function that applies dummy data to a product.
made the xpath extract an implementor of the the extractor interface.
changed the pricing feed to work with the extractor classes.
removed unnecessary lines from the extraction test.
added members to hold the xpath object and an extactor used to get the event type.
changed the constructor to setup an extractor to get the feed event type.
added a function to check if the event type model is configured.
renamed the _prepareForFeed function.

changed the function to create and configure the core/feed model.
split _getEventTypeModel into two functions.
minor change to the foreach loop used to fetch all files.
changed processFile to use the result of _determineEventType.