Started concurrency of page gets: not working yet
Reworked concurrency with getting pages

* Still does not work concurrently: net.go lines 100-102 this
  blocks, so does not work as intended. Need a different non-
  blocking mechanism to accomplish this
* The app hangs while getting records. Currently watching it hang
  with 182 records in the queue. Most likely a network issue, but
  it works fine if the record getting process is not concurrent or
  if a smaller subset of records is retrieved. net.go lines
  37-88
Changed concurrency methods for getting records:

* net.go: now use two waitgroups - one for a chunk of records
  and one for the entire slice of links. will stop the hanging problems
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