Version of programs checked on each run of pipeline

The version of all programs is now checked in
`reproduce/make/src/initialize.mk' and the pipeline won't complete if any
of the program versions change from those listed in
`reproduce/config/pipeline/dependency-versions.mk'.

Since the pipeline is systematically checking all program versions, we
don't need Gnuastro's `--onlyversion' option any more. So it (and all
references to it) have been removed.

1 files changed, 3 insertions, 9 deletions

diff --git a/README.md b/README.md
index 4e4af70..83b4265 100644
--- a/README.md
+++ b/README.md
@@ -466,15 +466,9 @@ advanced in later stages of your work.
  - **Gnuastro**: GNU Astronomy Utilities (Gnuastro) is currently a
      dependency of the pipeline which will be built and used. The main
      reason for this is to demonstrate how critically important it is to
-     version your software. If you do want to use Gnuastro in your
-     pipeline, be sure to un-comment the `onlyversion` option in
-     `reproduce/config/gnuastro/gnuastro.conf` file and set it to your
-     version of Gnuastro. This will force you to keep the pipeline in match
-     with the version of Gnuastro you are using all the time and also allow
-     commits to be exactly reproducible also (for example if you update to
-     a new version of Gnuastro during your research project). If you will
-     be using Gnuastro, you can also remove the "marks" (comments) put in
-     the relevant files of the list below to make them more readable.
+     version your software. If you will be using Gnuastro, you can also
+     remove the "marks" (comments) put in the relevant files of the list
+     below to make them more readable.
 
    - Delete marked part(s) in `configure`.
    - Delete marked parts in `reproduce/src/make/initialize.mk`.