[Dovecot] v1.1 version numbers

[Kenneth Porter]

I'd suggest dropping any "alpha" or "beta" in the version string and 
treating "1.1.1" as the first public release. Use "1.1.0" as a prefix for 
pre-release versions and use a fourth number as your build number, like 
1.1.0.123. The download page can explain the basics of this scheme so that 
newcomers don't assume it's a stable version.

This has the virtue of not requiring any knowledge in downstream packaging 
systems about the strings you'll use to denote various generations of 
prerelease. For example, RPM won't need to know that "1.1.rc1" comes before 
"1.1.0". (Building that kind of logic into every packaging system is a 
pain, when you consider that every upstream source names things 
differently.)

It also means that the public release won't be the buggy "dot-oh" that so 
many admins are accustomed to, but rather the dot-oh after all the known 
issues have been squeezed out, hence a dot-one. (Ie. it's a marketing trick 
to encourage adoption. ;))