Provide a dedicated batch file to provide similar behavior of envml bash
script but for CMD Windows shell. Update existing envml bash script to
provide same behavior for cmd and sh file (split argument over ';'
character, in addition to '&' character).
When analyzing environment variable changes applied by shell script
passed as argument, produce a `setenv` modulefile statement for any
variable found set prior script evaluation and for which value is
completely changed after script evaluation.
Fixes#320
Adapt configure script and Makefile to detect `python` command location
and set it as shebang for `createmodule.py` and `gitlog2changelog.py`.
If python command is not found python3 then python2 are searched.
Abort download of icdiff, nagelfar or tclsh83 after 2 timeouts of 5
seconds and record download failure for icdiff to avoid mt script to
attempt a new download tentative every time it is called.
Inhibit output generated by scripts evaluated by createmodule.sh and
createmodule.py to ensure these outputs will not get in the way when
analyzing the environment change done by the evaluated scripts.
Fixes#309
Fix createmodule.sh script to correctly analyses environment when shell
functions are found defined in it. These shell function definitions are
skipped.
