version 0.5.0
- fix: synthesize.data.frame would sometimes crash in the case of many ties
  and rankcor < 1.0. (Thanks to Inês Rodrigues de Sá for reporting).
- Added na.rm argument to avoid synthesizing missing values
- Improved documentation and reorganized code internally.
- Removed 'pMSE()' as it is out of scope for this package, and offered by other
  packages.

version 0.4.0
- added 'rankcor' argument to perturb ranks to 'synthesize()'
- renamed parameter y -> x in 'synthesize' and 'make_synthesizer()'
- removed experimental quality metrics (left pMSE)
- added time series synthesizer
- simplified style.css for vignette

version 0.3.1
- fix: bug in rank order matching

version 0.3.0
- Improved handling of missing values
- Added support for vectors of type 'logical'
- Updated DESCRIPTION and URL after CRAN team remarks.

version 0.2.0
- Initial CRAN release.