Added zinc_noirc for testing plugins without internet
Improved zinc_noirc for offline testing
First half of plugin system rewrite
Continued total plugin rewrite
Added pollhost and kernel interfaces
updated russianplugin
Bumped russian plugin version number
Updated snacks plugin
Updated Zinc to integrate new plugin system. As yet untested.
Slightly expanded interactive to allow for a -listcmds command.
Quick fix: forgot to actually add the command.
Merge branch 'interfaces'

Conflicts:
	plugins/zinc_plugin_host.cpp