1073 here pull token expired error

[gabrielwol]

What this pull request accomplishes:

• add retries for access_token while maintaining same request_id
• remove some duplicate function definitions (with some extra work pull_here and pull_here_path could be further deduped)
• Apply similar task.bash structure to pull_here_path that already existed in pull_here.

Issue(s) this solves:

• Closes #204, #1073 (duplicate issues)

What, in particular, needs to reviewed:

What needs to be done by a sysadmin after this PR is merged

• Update data_scripts links