more consistent names for member_has_GeneTree and member_has_GeneGainLossTree
more consistent names for member_has_GeneTree and member_has_GeneGainLossTree

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