Bump version to 3.0.0.beta2
Bump version to 3.0.0.beta2

We ended up changing the naming of the option `filepath` to
`schema_path` after `3.0.0.beta` was released. Here we release a new
version of the 3.0 line that has the new name in it to be consistent
with what's in 2.4.0

interagent/committee