New con_short_wait, better con_error, more changes
No reachability check, changed con_shutdown.
No reachability check.
Short timeout after spawn.

This becomes necessary after removed reachability check.
Short timeout after spawn.
Ignore TIMEOUT after removed reachability check
Increased short_wait timeout von 3 to 5s
Small fix.
v1.085

 - Ping command isn't used any longer to perform reachability check.
   A shorter timeout of 5s ist used now to prevent long wait at initial
   connection.
   This allows us to use the OpenSSH "ProxyCommand" for SSH connections.
Allow to specify default values for config file.
Read options timeout, login_timeout from config file.

Default value for timout has been decreased from 300 to 60s.
Default value for login_timeout is 3s.
Option '-t' of drc3.pl isn't supported any longer.
New option 'try_telnet' in config file.

If set, try telnet if device isn't reachable by ssh.
Added new options to examle etc/netspoc-approve
Fixed handling of default values.
Abort if ssh failed and if try_telnet isn't set.
v1.086

 - New config options in /etc/netspoc-approve:
   - timeout: Timeout during session. Default: 60s
   - login_timeout: Timout when establishing session. Default: 3s
   - try_telnet: Try telnet if device isn't reachable by ssh. (Default: unset)
 - Removed option '-t' of command drc3.pl (default was 500s).
Fixed error message for nat command with line != 1
Initialize variables with empty string.
Intermeditate checkin

Allow multiple users to call "newpolicy" in parallel.
Only one user really starts the process.
Other users see only output from logfile.
Check for unset environment variables