Updated the conservation score y_axis_min and y_axis_max when there are several genomic_align_blocks in a slice.
Updated the conservation score y_axis_min and y_axis_max when there are several genomic_align_blocks in a slice.

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