tweaks to positioning to remove ugly inconsistencies from the display, tidy up
tweaks to positioning to remove ugly inconsistencies from the display, tidy up

Ensembl/ensembl-draw,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode,Ensembl/ensembl-webcode