Initial ground work for PLN import command.
Added utility method to count the number of JAR files for the path to a folder provided.
Added extractJarFilesInDir with simple dev test in Command ouput.
Added pluplingimport/input/ and output/ folders in tmp/ directory - better solutions?
Added and modified all the PLN Plugin Import test script functions to work within Symfony plus Doctrine.
Note that for the plugin_properties table, the setPluginsId method does not seem to function as expected.
This is value needs to be set properly for successful lockss plugin import.
Removed commented-out SQL quries - no longer needed.
Initial work on refactoring addition of top level plugin properties into findAndAddPluginProperty.
Continued with findAndAddPluginProperty refactoring.
Removed commented out code blocks that are no longer necessary with the new function.
Command now successfully imports directory of plugin JARS. Further testing and clean up needed.
Deleted comments not needed for merge to master.