Bug fixed, some movies has N/A type that shouldnt be ignored.
Converter updates and fixes.
Description added to plugins.

    * provider, postprocessing plugins now have description too.
    * provider iplugin interface updated.
    * pluginhandler updated.
Remove year from query if type is name.
Session: Getters for plugins added. Sort by ratio updated.

    * sort by ratio now picks best ratio out of title and original title
    * year is added to ratio calculation if available