Defines mask for distribution components.

 The ProviewR user database $pwra_db/pwr_user.dat is included.
 The source is fetched from
     1. $pwrp_cnf/'nodename'/pwr_user.dat
     2. $pwra_db/pwr_user.dat

 Loadfiles are included, i.e.
   - loadfiles for volumes configured with RootVolumeLoad, SubVolumeLoad
     and ClassVolumeLoad objects, and volumes referenced by these volumes,
   - plc file.
   - rtt crossreference files.

 The startup file $pwrp_load/ld_appl_'nodename'_'busnumber'.txt is included.

 $pwrp_load/pwrp_alias.dat is included.

 All includefiles in $pwrp_inc is included.

 All Ge graph files $pwrp_exe/*.pwg are included.

 The xtt help file is included. The source file is fetched from
    1. $pwrp_cnf/'nodename'/xtt_help.dat
    2. $pwrp_exe/xtt_help.dat

 The xtt resource file with function key definitions is included. The source
 file is fetched from
    1. $pwrp_cnf/'nodename'/Rt_xtt
    2. $pwrp_pop/Rt_xtt
 and distributed to /home/b55

 The xtt setup file with menu configuration and symbol definitions is included.
 The source is fetched from
    1. $pwrp_cnf/'nodename'/xtt_setup.rtt_com
    2. $pwrp_pop/xtt_setup.rtt_com
 and distributed to /home/b55

 The plc trace files $pwrp_load/*.flw are included.

 The .rhosts file used by rsh is included. The source is fetched from
    1. $pwrp_cnf/'nodename'/.rhosts
    2. $pwra_db/.rhosts

 All web-files in $pwrp_web are included.

 Script pwrp_stop.sh is distributed.

 The .ssh/authorized_keys file used by ssh is included. The source is fetched from
    1. $pwrp_cnf/'nodename'/authorized_keys
    2. $pwra_db/authorized_keys

 XML files generated by IO configurators on $pwrp_load are included.