Merge pull request #781 from SpatLyu/v2.0

keep only R CMD check report info in CRAN comment file

rebuild vignette of the `spEDM` package introduction

prepare CRAN submission: clarify NOTE on possibly misspelled words

submit spEDM `1.5` to cran

Merge pull request #167 from SpatLyu/v2.0

rebuild `gccm` vignette

Merge pull request #130 from stscl/dev

ready to release `spEDM` 1.3

Merge pull request #76 from stscl/dev

require `sdsfun` version `0.7.0` or higher

update cran comment

add cran comment