Well Sergey that really sucks because some of us have to work in a corporate world where software like Websphere is forced upon us. Websphere doesn't support JSF 1.2. And if history proves itself, Websphere might support JSF 1.2 around 2010.
I know this isn't you're problem, but you could help out by back porting some of the newer components you are adding to 3.2 to a 3.1.x release.
3.1.3 will support JSF 1.1.
New components that developing for 3.1.3 (in the 3.2's sandbox) are JSF 1.1 compatible. It is not required for the rest of them.