Changes in version 0.1.2                        

Resubmission addressing CRAN reviewer feedback.

  - Removed "An R package for" from Description field.
  - Added references with DOIs for all six implemented methods.
  - Added \value tags to print.factor_select, summary.factor_select, and
    plot.factor_select.
  - Removed examples from all internal (unexported) functions.

                        Changes in version 0.1.1                        

  - Fixed invalid GitHub URL in DESCRIPTION.

                        Changes in version 0.1.0                        

  - Initial CRAN submission.
  - Implements six factor number estimators: Ahn & Horenstein (2013),
    Bai & Ng (2002), Alessi, Barigozzi & Capasso (2010), Lam & Yao
    (2012), Onatski (2009), and Onatski (2010).