fixed blcr for everything to be added.  Also made it into it's own rpm must use %_with_blcr option with rpms for it to be built

   builtin scheduler.

replaced local gtk m4 test with AM_PATH_GTK_2_0 also changed AC_CHECK_LIB to AC_SEARCH_LIBS to avoid extra libs in compile lines.

moved socket_accept and socket_readable functions into a common place for all the calls since the code was very similar.

   in sattach.c, step_launch.c, and allocate_msg.c