made the "temporary?" attibute readable

I hate my life even more! This emphasizes totally silly aspects of Snap! at the cost of adding cognitive burden. It's a mirage: It looks loomingly important but has little to no relevance in reality. Only for nitpicks who don't ever make projects.

HISTORY.md

@@ -58,6 +58,7 @@
     * colors in the vector editor are now named "Edge color" and "Fill color", thanks, Brian!
     * renamed "whitespace" option in SPLIT to "word"
     * made the "name" attribute programmatically settable
+    * made the "temporary?" attibute readyble
     * deprecated storing projects in the browser's localStorage
     * deprecated some (useless) graphic effects
     * additional "publish / unpublish" buttons in the project dialog
@@ -87,6 +88,7 @@
 * Blocks, Threads, Objects: added "blitz" version of FIND
 * Blocks, Threads, Objects:  renamed "whitespace" option in SPLIT to "word"
 * GUI, Threads: made "name" attribut programmatically settable, (I hate my life!)
+* Blocks: made the "temporary?" attibute readable (I hate my life even more!)
 
 ### 2019-05-28
 * Maps: added various different tile hosts

src/blocks.js

@@ -8959,8 +8959,6 @@ InputSlotMorph.prototype.gettablesMenu = function () {
     if (oop) {
         dict.children = ['children'];
         dict.parent = ['parent'];
-    }
-    if (oop && this.world().isDevMode) {
         dict['temporary?'] = ['temporary?'];
     }
     dict.name = ['name'];