3) Artifacts with licences that are not compatible with the ASF policies. I know this block a proper Apache release, also a incubating one?
An incubating release is no different to any other release. There are only "releases".
Just to note: the headers on the files need to be sorted out but I think you have the license plugin setup. The exact text is given in:
http://www.apache.org/legal/src-headers.html which is the "granted, no copyright" version. There's a tool help: http://creadur.apache.org/rat/ Are any files exceptions (i.e. third party source code)? Andy
