Replace XKeycodeToKeysym with XkbKeycodeToKeysym due to deprecation
Makefile: ignore error on non-existence of "configuration" file
superkb.c/xerror_handler(): Control was reaching end of non-void function
Remove unused variables
Remove set but unused variables
Replace deprecated gdk_pixbuf_unref with g_object_unref
Removed deprecated g_type_init(); no longer needed
Makefile: removed circular (and useless) dependency
Makefile: adjustments for manpage generation and installation
Use LDFLAGS to allow use of custom packaging options
Append to CFLAGS instead of assigning, to allow custom packaging options
Fix maybe-uninitialized warnings
chmod -x some files that should not be that way
Push version to 0.23
Push version to 0.23+git