more robust searching and loading of sidfiles

* remove c64.org plugin, use super search as default
* iterate over set of HVSC mirrors when loading
* fix column sort in player view, was broken
* add missing -ldl to Makefile
* version bump

Signed-off-by: Tapani Pälli <lemody@gmail.com>

# Please enter the commit message for your changes. Lines starting
# with '#' will be ignored, and an empty message aborts the commit.
# Explicit paths specified without -i nor -o; assuming --only paths...
#
# Author:    Tapani Pälli <tapani.palli@intel.com>
#
# On branch master
# Changes to be committed:
#   (use "git reset HEAD^1 <file>..." to unstage)
#
#	modified:   Makefile
#	modified:   debian/changelog
#	modified:   debian/postinst
#	modified:   loader_tab.c
#	modified:   loader_tab.h
#	modified:   msid_config.ini
#	modified:   msidmachine.h
#	modified:   player_tab.c
#	modified:   player_tab.h
#	modified:   plugins/search/Makefile
#	renamed:    plugins/search/search_plugin_c64org.cpp -> plugins/search/search_plugin_super.cpp
#	renamed:    plugins/search/search_plugin_c64org.h -> plugins/search/search_plugin_super.h
#
