Fix Ensembl version check tool in goci

[sprintell]

We’ve been receiving the email saying Problem Determining Latest Ensembl Release. Checking the ensembl release check API, I can see its working.http://rest.ensembl.org/info/data/?content-type=application/json

The ensembl endpoint is not consistent in with the position of the version number, sometimes its on the array element [0], but at other times its on array element [1] but the code is always checking array element [0]. We have to change the goci code that does the checking.