Medicare 0.2.1

Updates:
- price_deflate() updated with newer government published figures.
- price_deflate() restricted to years 2007-2014.

Medicare 0.2.0

New features:
- price_deflate() function: deflates spending from specific Medicare sectors (i.e. inpatient, physician, hospice) within the range 2002:2014.
Bug fixes:
- Fixed row / column subsetting in cr_extract(), which wasn't working correctly for tibbles.
- Fixed typos in vignettes.

Medicare 0.1.0

Initial release: functions for manipulating cost reports and provider of services data.