updated "tools" library (for new HOF prims)

HISTORY.md

@@ -77,6 +77,7 @@
 * updated French translation (for new HOF prims)
 * corrected French translation for "warp" to be "warp" instead of "englobe"
 * moved "for each" down in the lists pallette towards the imperative blocks
+* updated "tools" library (for new HOF prims)
 
 ### 2019-04-25
 * updated German translation (for new HOF prims)