Tooltip for signature has correct genes but does not include their weights

[maryjgoldman]

The tooltip for a signature lists the genes in the signature but puts a "+" between each of the genes even if in the actual signature there are weights or a "-" instead.

Example: You can see that the tooltip highlighted in green does not match the actual signature in black
https://xenabrowser.net/?bookmark=85b3959f67569f5558d0e75aca86d639