Revert "Fixes #193 - reduce bubble opacity to 0.5 from 0.9"
Revert "Fixes #193 - reduce bubble opacity to 0.5 from 0.9"

This reverts commit b7e6b948b6ae1cc2f3cbf9523a4b6eab6e7993fe.

Now that svg is partitioned with selected links above bubble it's
opacity can be restored to the previous value.

Rhizi/rhizi,yuvadm/rhizi,shlomif/rhizi,Rhizi/rhizi,cben/rhizi,cben/rhizi,tlevine/rhizi,yuvadm/rhizi,cben/rhizi,tlevine/rhizi,yuvadm/rhizi,tlevine/rhizi,shlomif/rhizi,yuvadm/rhizi,cben/rhizi,ozFri/rhizi,ozFri/rhizi,Rhizi/rhizi,ozFri/rhizi,shlomif/rhizi,tlevine/rhizi,Rhizi/rhizi,shlomif/rhizi,ozFri/rhizi