mkexp: added work-around for Jinja 2.8 bug when applying eval_ctx filters to literals (eval_ctx and value are swapped)

mkexp: fixed missing mkdir -p option in cppath to allow incremental copying of data that is not produced in one go

* Updated documentation version
* Updated package version

Disabled evaluation of standard Jinja blocks ({% ... %}) and comments ({# ... #}). This allows handling templates with standard Jinja code and shell scripts using array length expansion (${#ARRAY})

* First look for templates based on the config file's base name
* Then look for templates based on the given EXP_ID