Version 0.3.0

NEW:

• bsdr() to retrieve Bloomberg SDR data (also closes #23)
• bsef() to retrieve Bloomberg SEF data
• ddr() to retrieve DTCC Data Repository data (also closes #25)
• cme() to retrieve CME SDR data

DEFUNCT:

• get_bsdr_data() is defunct. Use the new function bsdr() instead which has a different interface to get_bsdr_data().
• get_bsef_data() is defunct. Use the new function bsef() instead which has a different interface to get_bsef_data().
• get_ddr_data() is defunct. Use the new function ddr() instead which has a different interface to get_ddr_data().
• get_cme_data() is defunct. Use the new function cme() instead which has a different interface to get_cme_data().

OTHER:

• Bumped minimum version requirements for R as well as readr, httr and utils packages. The latter to ensure that downloader::download() can be replaced by an implementation of utils::download.file() that supports https: URLs.
• Replaced calls to httr::url_ok() with expressions containing httr::status_code() as the former is deprecated
• Expanded CI support to macOS (Travis) and Windows (Appveyor)