Began to sketch an releng/README file

releng/README.old

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+Release Engineering
+~~~~~~~~~~~~~~~~~~~
+* SOFTWARE TO TEST
+ + Use latest libburnia libraries code base from svn and bzr
+   (see top-level README for aditional library dependencies)
+ + Alternatively, use latest all-in-one development tarball from:
+   http://www.gnu.org/software/xorriso/
+
+* SETUP THE TEST ENVIRONMENT AND RUN THE TEST SUITE
+ + All tests have to be run from the releng/ directory, within
+   libisoburn source tree. Self-generated data are stored in
+   ./releng_generated_data/ directory, and the required space for
+   these data is about 300 megabytes. There is a 'master' script
+   called run_all_auto, which runs all scripts prefixed with auto_*.
+ + Any auto_* script can be run on its own, regardless.
+ + Any manual_* script is to be run on its own, only.
+ + All scripts support -h, -help, --help and
+   print usage help when run without options.
+
+* DELIVERING A NEW TEST SCRIPT
+ + Start a new test script over the top of template_new_releng
+ + Each completed script starts with auto_ or manual_ prefix
+ + Each script' self-generated data are to be stored in
+   ./releng_generated_data/scriptname/ directory
+ + Keep the newly added script options in sync with other scripts
+ + Throw FAIL string to stdout if any failure is detected
+ + Return exit code 0 on success, non-zero on failure
+ + Use different exit codes for any failure (range 0-31)