wbstats 1.0.0

The 1.0.0 release represents a complete overhaul of the wbstats package to
hopefully be more consistent and easy to use.

Changes:

Data now returns in a wide format by default with each indicator being its own column
Adoption of the "tidyverse" ecosystem.
New naming convention, wb_*() for all wbstats functions. Relatedly,
Older functions from previous versions are now deprecated and should produce a warning
Support for custom indicator names by passing a named vector to wb_data()
Includes support for most recent non-empty value queries. Basically quering the most recent
n values from each location, regardless of the date.
wb_search() now accepts any grep() argument passed through ...