new method added to easily add 16 x 16 info icon with an on-hover helptip
new method added to easily add 16 x 16 info icon with an on-hover helptip

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