Fixes and updates.

TODO.txt: Update.
build-scripts/clean_build_tree.sh: Fix failure when $RUN_BUILDOUT_DIR/go did not exist.
build-scripts/bootstrap_buildout.sh: Fix a bug in the backup mechanism.
templates/:
- Fix mca/Makefile.in
- Change debian_defaults/dirs.in to fit the mca case.

obs/generic/TODO.txt

@@ -4,6 +4,7 @@ Document the project.
 Do not rename the plugin library (libfluentbit-wendelin.so to fluentbit-wendelin.so). The fix first has to be made upstream (in the metadata-collect-agent project).
 
 MID TERM
+Add a fonction in build-scripts/configuration-information.sh to delete the go/ directory?
 Re-add networkcached to the building process.
 Use a ./configure script?
 - In particular, in $ARCHIVE_NAME/Makefile there are some operations which should be in the template stage.