Due to changes in the structure of the production database, since
release 98 the value of analysis.logic_name corresponding to non-coding
RNA can be either 'ncrna' (which is what we used before) or
'ncrna_species_name'. Change the SQL query used to map RFAM IDs to
Ensembl stable IDs so that it can correctly handle species using the
latter syntax, i.e. human, mouse and zebrafish.

Issue: ENSINT-402

Changing all ens-staging1/2 to ens-staging3, as we'll be using this new host for pipelines until the EBI shift over

This reverts commit 3e24194c.

default behaviour is to use registry and staging, but can also use alternative database on other server