util.pluginloader: Fix loading of plugins, plugin libraries and resources in subfolders (e.g., when loading 'a/b', load 'a/mod_b.lua', and not 'mod_a/b.lua').
util.pluginloader: Fix loading of plugins, plugin libraries and resources in subfolders (e.g., when loading 'a/b', load 'a/mod_b.lua', and not 'mod_a/b.lua').

sarumjanuch/prosody,sarumjanuch/prosody