[Dovecot] v1.1.6 released

[Cor Bosman]

> If there were no error messages logged with 1.1.5, there's nothing I  
> can think of that could explain it.

Im not sure when this started, but im seeing very high CPU use in dovecot.
I recently swapped our systems to Linux from FreeBSD, and ive also moved
versions up a few (now on 1.1.6).

Here's an idea of what im seeing:

 PID USER  PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND  
28554 xxx  20   0 11108 1452 1136 R   17  0.0   0:00.76 imap          
28542 xxx  20   0 11004 1456 1120 R   16  0.0   0:00.86 imap         
28552 xxx  20   0 11108 1504 1136 R   16  0.0   0:00.64 imap        
28550 xxx  20   0 11168 1556 1176 R   15  0.0   0:00.78 imap       
28485 xxx  20   0 11192 1588 1152 R   14  0.0   0:01.58 imap      
24161 xxx  20   0 11124 1684 1204 R   13  0.0   0:20.44 imap     
28521 xxx  20   0 13388 1816 1308 R   13  0.0   0:01.60 imap    
28545 xxx  20   0 11108 1448 1136 R   13  0.0   0:00.82 imap   
28486 xxx  20   0 11232 1612 1152 R   12  0.0   0:01.38 imap  
28565 xxx  20   0 11268 1644 1148 R   12  0.0   0:00.56 imap 
32470 xxx  20   0 15972 2428 1400 R   11  0.1   0:55.74 imap       
28520 xxx  20   0 11152 1600 1212 R   11  0.0   0:01.10 imap      
25056 xxx  20   0 13584 2072 1396 R   10  0.1   0:36.64 imap     
25677 xxx  20   0 11108 1612 1172 R   10  0.0   0:09.22 imap    
28347 xxx  20   0 11328 1708 1220 R   10  0.0   0:03.54 imap   

At what stage does dovecot use a lot of CPU? What makes this more
complicated is that im not seeing it on all servers. I currently have
35 in production and about 5 are showing this. A bit too many to be
a server issue. Load is equally distributed so it's not that those
5 have more users on them.

Cor