Update version number, NEWS and cran comments.

Author: astamm

DESCRIPTION

@@ -1,6 +1,6 @@
 Package: flipr
 Title: Flexible Inference via Permutations in R
-Version: 0.3.0
+Version: 0.3.1
 Authors@R: c(
     person(given = "Alessia", 
            family = "Pini", 

NEWS.md

@@ -1,3 +1,10 @@
+# flipr 0.3.1
+
+- Remove any occurrence of base-R pipe operator in favor of [**magrittr**](https://magrittr.tidyverse.org) pipe operator for now for backward compatibility with older versions of R.
+- Improved way of handling statistics that rely on inter-point distances.
+- Method `$get_value()` gains optional arguments `keep_null_distribution` and `keep_permutations` in case the user would like to keep track of either the permutation null distribution or the sampled permutations that have been used to produce it.
+- Method `$get_value()` now handles extra parameters to be passed to the test statistics.
+
 # flipr 0.3.0
 
 ## Breaking changes

cran-comments.md

@@ -1,5 +1,5 @@
 ## Test environments
-* local macOS R installation, R 4.1.0
+* local macOS R installation, R 4.1.1
 * macOS latest release (via [R-CMD-check](https://github.com/r-lib/actions/blob/master/examples/check-standard.yaml) github action)
 * windows latest release (via [R-CMD-check](https://github.com/r-lib/actions/blob/master/examples/check-standard.yaml) github action)
 * ubuntu 20.04 latest both release and devel (via [R-CMD-check](https://github.com/r-lib/actions/blob/master/examples/check-standard.yaml) github action)