> 1) elogd should report quota or disk-full problem:  In case a logbook           
>    entry cannot be saved (quota or disk full) then a message like               
>    'Could not save last entry.  Please contact administrator.' should           
>    be displayed.  Currently nothing happens.  Only the submitted                
>    entries 'vanish'.                                                            

That has been fixed in meantime.

> 4) mark messages as unread/read on a per user basis: The                        
>    implementation of this might be quite involved but it would be               
>    rather useful.  One way would be to add a default attribute 'Seen            
>    by' to each entry, which lists the login names of the users.  Or 
>    files LOGIN_NAME.has_seen can be created which contain the entry 
>    IDs of the viewed entries for each user.

There is an elegant way to achieve this already now: Use an RSS reader (like
SharpReader for Windows or Straw from Linux) and subscribe to a logbook. Then don't
read the entries directly in the logbook, but read them in your RSS reader. Once you
read them, they become automatically marked read.   

> 5) alignment of attribute table (using <td colspan=2> for multi line            
>    stuff): see elog:669 :)                                                      

Has been fixed as well.

> - Use "and" and "or" operands in queries                                        

Elog supports now regular expressions. So for a "<str1> OR <str2>" one can write

<str1>|<str2>

and for a "<str1> AND <str2>" one can write

<str1>.*<str2>|<str2>.*<str1>

Looks a bit complicated, but maybe some day we will get some code which rewrites
"AND" and "OR" as regular expressions.