Avoid to duplicate entris in the meta table if the script is run several times
Avoid to duplicate entris in the meta table if the script is run several times

dbolser-ebi/ensembl-compara,dbolser-ebi/ensembl-compara,ckongEbi/ensembl-compara,Ensembl/ensembl-compara,etapanari/ensembl-compara,Ensembl/ensembl-compara,kumarsaurabh20/ensembl-compara,Ensembl/ensembl-compara,danstaines/ensembl-compara,etapanari/ensembl-compara,etapanari/ensembl-compara,danstaines/ensembl-compara,kumarsaurabh20/ensembl-compara,Ensembl/ensembl-compara,Ensembl/ensembl-compara,dbolser-ebi/ensembl-compara,etapanari/ensembl-compara,ckongEbi/ensembl-compara,danstaines/ensembl-compara,Ensembl/ensembl-compara,Ensembl/ensembl-compara,danstaines/ensembl-compara,danstaines/ensembl-compara,kumarsaurabh20/ensembl-compara,ckongEbi/ensembl-compara,Ensembl/ensembl-compara,kumarsaurabh20/ensembl-compara