Update render_doIdentityImageDm.sh:
    
        - When we define the VERSION variable, the REGEX filtering
          expression was removed. The render_doIdentityImageDm is used as
          last-rendering action, so it is called after rendering base
          images. Regular expression defined for base-rendering action,
          may not work for last-rendering list of files, and regular
          expression defined for last-rendering action may not match
          base-rendering list of files. So, in order to avoid confusion
          regular expression pattern is applied to base-rendering actions.
    
        - When we verify background images, if the background image
          doesn't exist, skip it and continue with the next file in the
          list.
    
    Update render_getFilesList.sh:
    
        - Do not use begining (^) and end ($) regular expression modifiers
          when we redefine regular expression (REGEX) local variable
          inside render_getFilesList.sh file. Such definition takes place
          inside cli_getFilesList.sh function script.
    
        - Do not include the LOCATION to regular expression (REGEX) inside
          render_getFilesList. The LOCATION value is added to regular
          expression (REGEX) in cli_getFilesList function.