rdfp 0.1.3

Note: DoubleClick for Publishers was recently renamed to Google Ad Manager. For
this version we will continue to use the "dfp" abbreviation although everything else
has been updated to v201811 from the Google Ad Manager API reference.

Also, please note that the API has changed the name of timeZoneID to timeZoneId.
We have modified functions to follow suit. You may need to update this argument in existing
scripts, especially when dealing with forecasts, reports, orders, and lineitems.

Features

• Update to latest version which is v201811 (#8)
• Make the default file name for a cached token ".httr-oauth-rdfp" so that
  it does not clash with other package token names
• dfp_date_to_list() now infers the timezone if not provided. Previously it always defaulted
  to a value of America/New_York (#6)
• Increased the default max_tries argument in dfp_full_report_wrapper() from
  10 to 20 tries so that long running queries do not "timeout" by reaching the max
  number of tries without completing

Bug Fixes

• Update vignette names so that they are not duplicated, which is now a required
  check for CRAN