chore: bump to release version 0.2.12

DESCRIPTION

 Package: airGRteaching
 Type: Package
 Title: Teaching Hydrological Modelling with the GR Rainfall-Runoff Models ('Shiny' Interface Included)
-Version: 0.2.11.9000
-Date: 2021-08-05
+Version: 0.2.12
+Date: 2021-08-06
 Authors@R: c(
   person("Olivier", "Delaigue", role = c("aut", "cre"), comment = c(ORCID = "0000-0002-7668-8468"), email = "airGR@inrae.fr"),
   person("Laurent", "Coron", role = c("aut"), comment = c(ORCID = "0000-0002-1503-6204")),

NEWS.md

@@ -4,7 +4,7 @@
 
 
 
-### 0.2.11.9000 Release Notes (2021-08-05)
+### 0.2.12 Release Notes (2021-08-06)
 
 #### Bug fixes
 
@@ -14,7 +14,8 @@
 
 #### User-visible changes
 
-- add explanation of the use of the GR5H model in the `PrepGR()` help page. ([#41](https://gitlab.irstea.fr/HYCAR-Hydro/airgr/-/issues/41))
+- displaying a message when the package is attached from RStudio and also when the GUI is launched by `ShinyGR()` in order to warn users about GUI instability problems. ([#46](https://gitlab.irstea.fr/HYCAR-Hydro/airgr/-/issues/46))
+- added explanation of the use of the GR5H model in the `PrepGR()` help page. ([#41](https://gitlab.irstea.fr/HYCAR-Hydro/airgr/-/issues/41))
 - the text relating to the GR2M model in the 'GUI Help' image displayed by the GUI launched by `ShinyGR()` is corrected. ([#42](https://gitlab.irstea.fr/HYCAR-Hydro/airgr/-/issues/42))
 - replace the use of `class()` by `inherits()` in order to test the classes of inputs in all functions. ([#45](https://gitlab.irstea.fr/HYCAR-Hydro/airgr/-/issues/45))
 
@@ -94,7 +95,7 @@ ________________________________________________________________________________
 
 #### CRAN-compatibility updates
 
-- when the package is loaded or when the `dyplot()` and the `ShinyGR()` function are used, a message warns the users if they use a version of 'htmlwidgets' < 1.5.2.9000. The latest version of this package, available on GitHub, avoids troubles with the use of dynamic graphics of the 'dygraphs' package (called by the `dyplot*()` and the `ShinyGR()` functions) ([#5](https://gitlab.irstea.fr/HYCAR-Hydro/airgrteaching/-/issues/5))
+- when the package is attached or when the `dyplot()` and the `ShinyGR()` function are used, a message warns the users if they use a version of 'htmlwidgets' < 1.5.2.9000. The latest version of this package, available on GitHub, avoids troubles with the use of dynamic graphics of the 'dygraphs' package (called by the `dyplot*()` and the `ShinyGR()` functions) ([#5](https://gitlab.irstea.fr/HYCAR-Hydro/airgrteaching/-/issues/5))
 
 ____________________________________________________________________________________