Patch process?

Just a general question - I submitted a patch for contrib/cube (adding a 
new function & converting everything from V0 to V1), what is the process 
from here onwards? Do we have an active maintainer of this code? How is 
it reviewed?

I would like to continue working on the cube stuff, as our company uses 
it heavily and has developed a core library of functions that we use 
regularly. I would love to be able to add these back to the Postgres 
project, but I'm not sure about what the guidelines are for contrib. I 
have noticed comments elsewhere about contrib packages being removed 
because they didn't follow guidelines, so I don't want to fall foul of 
that line, but I am not sure where the line is.

I noticed that one of the regression tests now fail, as the original 
regression test expects a certain ordering from a query that doesn't 
request ordered results. Should I fix the test case so that ordering 
will be assured? Should I add test cases for most of the functions that 
currently aren't being tested?

Thanks,

Josh Reich