MOAR workarounds - freeze CMM at a usable version

The dzil conversion introduced dependency on MBT which is extremely
hard to get going on older perls, left alone all dists made with it

Hopefully it will get fixed:
https://rt.cpan.org/Ticket/Display.html?id=88641

diff --git a/maint/travis-ci_scripts/30_before_script.bash b/maint/travis-ci_scripts/30_before_script.bash
index ab57e55..a2df851 100755 (executable)
--- a/maint/travis-ci_scripts/30_before_script.bash
+++ b/maint/travis-ci_scripts/30_before_script.bash
@@ -42,7 +42,13 @@ if [[ "$CLEANTEST" = "true" ]]; then
   # So instead we still use our stock (possibly old) CPAN, and add some
   # handholding
   if ! CPAN_is_sane ; then
-    for m in ExtUtils::MakeMaker ExtUtils::CBuilder R/RS/RSAVAGE/Tree-DAG_Node-1.13.tgz Module::Build ; do
+    for m in \
+ExtUtils::MakeMaker \
+ExtUtils::CBuilder \
+R/RS/RSAVAGE/Tree-DAG_Node-1.13.tgz \
+Module::Build \
+E/ET/ETHER/Class-Method-Modifiers-2.04.tar.gz \
+; do
       run_or_err "Pre-installing $m" "cpan $m"
       if ! perl -e '