Rename package to revealjs.ids

Renames the fork so the IDS corporate design edition can be installed
alongside upstream rstudio/revealjs (same pattern as posterdown.ids).
Use revealjs.ids::revealjs_presentation in the R Markdown yaml header.

Changes: DESCRIPTION (Package name, Version -> 0.9.1.9009, Title notes
the IDS edition), R/utils.R package lookups, skeleton + RStudio
template identity (now 'Reveal.js Presentation (IDS CD theme)'),
README usage, GitLab CI render call, tests, examples. Old documents
referring to revealjs::revealjs_presentation need upstream revealjs
or a search/replace of the prefix.

Change-Id: Id3988b2c3fd348faca3c0951223d0b90c01741dc
diff --git a/tests/manual/test-incremental-attributes.Rmd b/tests/manual/test-incremental-attributes.Rmd
index d9ff640..b90d424 100644
--- a/tests/manual/test-incremental-attributes.Rmd
+++ b/tests/manual/test-incremental-attributes.Rmd
@@ -1,7 +1,7 @@
 ---
 title: "Incremental using attributes"
 output: 
-  revealjs::revealjs_presentation:
+  revealjs.ids::revealjs_presentation:
     incremental: false
 ---
 
diff --git a/tests/manual/test-incremental-globally.Rmd b/tests/manual/test-incremental-globally.Rmd
index c4a3c80..6435590 100644
--- a/tests/manual/test-incremental-globally.Rmd
+++ b/tests/manual/test-incremental-globally.Rmd
@@ -1,7 +1,7 @@
 ---
 title: "Incremental globally"
 output: 
-  revealjs::revealjs_presentation:
+  revealjs.ids::revealjs_presentation:
     incremental: true
 ---
 
diff --git a/tests/manual/test-incremental-locally.Rmd b/tests/manual/test-incremental-locally.Rmd
index 1d1ebe6..38ad0c2 100644
--- a/tests/manual/test-incremental-locally.Rmd
+++ b/tests/manual/test-incremental-locally.Rmd
@@ -1,7 +1,7 @@
 ---
 title: "Incremental locally"
 output: 
-  revealjs::revealjs_presentation:
+  revealjs.ids::revealjs_presentation:
     incremental: false
 ---
 
diff --git a/tests/manual/test-incremental-pausing.Rmd b/tests/manual/test-incremental-pausing.Rmd
index 48174db..0da11f5 100644
--- a/tests/manual/test-incremental-pausing.Rmd
+++ b/tests/manual/test-incremental-pausing.Rmd
@@ -1,6 +1,6 @@
 ---
 title: "Incremental by pausing"
-output: revealjs::revealjs_presentation
+output: revealjs.ids::revealjs_presentation
 ---
 
 # Pausing using pandoc syntax
diff --git a/tests/manual/test-options-size.Rmd b/tests/manual/test-options-size.Rmd
index 89862d8..a4a675a 100644
--- a/tests/manual/test-options-size.Rmd
+++ b/tests/manual/test-options-size.Rmd
@@ -1,6 +1,6 @@
 ---
 output:
-  revealjs::revealjs_presentation:
+  revealjs.ids::revealjs_presentation:
     reveal_options:
       width: "100%"
       height: "100%"
diff --git a/tests/manual/test-plugin-chalkboard.Rmd b/tests/manual/test-plugin-chalkboard.Rmd
index 1f6c00b..215ae75 100644
--- a/tests/manual/test-plugin-chalkboard.Rmd
+++ b/tests/manual/test-plugin-chalkboard.Rmd
@@ -1,7 +1,7 @@
 ---
 title: "chalkboard plugin"
 output: 
-  revealjs::revealjs_presentation:
+  revealjs.ids::revealjs_presentation:
     self_contained: false
     reveal_plugins: ["chalkboard"]
     reveal_options:
diff --git a/tests/manual/test-widget-highcharter.Rmd b/tests/manual/test-widget-highcharter.Rmd
index 34cdc8e..c0a2673 100644
--- a/tests/manual/test-widget-highcharter.Rmd
+++ b/tests/manual/test-widget-highcharter.Rmd
@@ -1,7 +1,7 @@
 ---
 title: "Rmarkdown Presentation including Plotly"
 output: 
-  revealjs::revealjs_presentation
+  revealjs.ids::revealjs_presentation
 ---
 
 # Setup
diff --git a/tests/manual/test-widget-leaflet.Rmd b/tests/manual/test-widget-leaflet.Rmd
index 2b57ede..6abe75e 100644
--- a/tests/manual/test-widget-leaflet.Rmd
+++ b/tests/manual/test-widget-leaflet.Rmd
@@ -1,7 +1,7 @@
 ---
 title: "Rmarkdown Presentation including Leaflet"
 output: 
-  revealjs::revealjs_presentation
+  revealjs.ids::revealjs_presentation
 ---
 
 ```{r, include = FALSE}
diff --git a/tests/manual/test-widget-plotly.Rmd b/tests/manual/test-widget-plotly.Rmd
index 1090198..2291d15 100644
--- a/tests/manual/test-widget-plotly.Rmd
+++ b/tests/manual/test-widget-plotly.Rmd
@@ -1,7 +1,7 @@
 ---
 title: "Rmarkdown Presentation including Plotly"
 output: 
-  revealjs::revealjs_presentation
+  revealjs.ids::revealjs_presentation
 ---
 
 # Setup