Get rid of all cores without mem in the database #73
Description
Rules like this for raxml allocate additional cores but because most people set mem: cores * SOME_FACTOR in their default tool it also scales memory, which is unnecessary for tools that parallelize well but don't use much memory.
We should probably run down the list of tools in the DB that only set cores and set mem as well unless they should actually scale memory lineraly with cores (and it should be roughly 4 GB/core, which is what most of us use I believe).