Update Globus downloads to use Globus SDK

[mauzey1]

This change will replace the old Globus transfer API with Globlus SDK. It also removes the X.509 endpoint activation section in the activateEndpoint fucntion that didn't appear to be in use in CoG.

[sashakames]

Thanks, Lets ensure testing is successful on this before merge into devel so no need to back out changes.

[nathanlcarlson]

This has successfully completed a transfer @sashakames . I am going to approve.

[sashakames]

Great! @nathanlcarlson on what server were you able to test? I thought on esgf-fedtest was registered (or did you register another client)?

[mauzey1]

@sashakames I tested the Globus transfer by running CoG on my RHEL 7 workstation.

[sashakames]

Thanks @mauzey1! Nathan explained the peculiarities of testing from your desktop. I'm inclined to attempt a test on esgf-fedtest prior to a merge and will try to do so Monday next week if not later today.

[sashakames]

On esgf-fedtest the selected datasets aren't picked up by the transfer view. Will need to look into whats going on there. Can't imagine that complicated a problem.

[mauzey1]

@sashakames @nathanlcarlson Are there Globus-enabled datasets on esgf-fedtest? I don't see any on there.

[sashakames]

https://esgf-fedtest.llnl.gov/search/esgf-llnl-dev/ - search for data_node aims3 or esgf-data1

[mauzey1]

I'm getting a 504 error with that link.

[sashakames]

Seems to be working when I opened a private firefox sesssion. Might be some cookie issue as I saw the same issue, and don't quite understand the error in the log at first glance.

[sashakames]

Apologies that was just the project view page. The search page is timing out now and not sure why.

[nathanlcarlson]

Going to use #1423