Changes in version 1.0.0                        

Initial Release

  - Implements Cross-Sectionally Augmented Panel Quantile ARDL
    (CS-PQARDL) estimation
  - QCCEMG (Quantile CCE Mean Group) estimator following Harding,
    Lamarche & Pesaran (2018)
  - QCCEPMG (Quantile CCE Pooled Mean Group) estimator
  - Cross-sectional dependence handling via CCE approach (Pesaran, 2006)
  - Automatic CSA lag selection following Chudik & Pesaran (2015):
    floor(T^{1/3})
  - Long-run coefficient estimation with delta-method standard errors
  - Speed of adjustment and half-life calculations
  - Mean group variance estimation
  - S3 methods: print, summary, coef, vcov
  - Comprehensive documentation with DOI references
  - Test suite using testthat