scripts/fetch in rvm-0.1.39 vs scripts/fetch in rvm-0.1.40

@@ -1,9 +1,8 @@
 #!/usr/bin/env bash
 
-if [[ ! -z "$rvm_trace_flag" ]] ; then set -x ; export rvm_trace_flag ; fi
-
-trap "if [[ -d $rvm_tmp_path/ ]] && [[ -f $rvm_tmp_path/$$ ]] ; then rm -f $rvm_tmp_path/$$ > /dev/null 2>&1 ; fi ; exit" 0 1 2 3 15
+rvm_base_except="selector"
+source "$rvm_scripts_path/base"
 
 record_md5() {
   if [[ "Darwin" = "$(uname)" ]] || [[ "FreeBSD" = "$(uname)" ]]; then
     archive_md5="$(/sbin/md5 -q "${archive}")"
   else