Add dependency version warnings to preversion.sh (#1862)

Add warnings about outdated dependencies when building for release manually, to avoid #1861.

scripts/preversion.sh

@@ -1,4 +1,18 @@
 #!/bin/bash
+
+for package in $(npm outdated --parseable nise lolex @sinonjs/formatio @sinonjs/samsam)
+do
+    wanted="$(cut -d: -f2 <<< "$package")"
+    current="$(cut -d: -f3 <<< "$package")"
+    if [ "$wanted" != "$current" ]
+    then
+        echo "WARNING: Building with outdated package ${current}, run 'npm update' to install ${wanted}"
+        exit 1
+    fi
+done
+
+npm test
+
 echo 'Updating History.md'
 git changelog --no-merges
 git add History.md