Added hourglass icon to resources

mgrojo · mgrojo · commit 49fbc52fecdd · 2018-12-06T21:26:14.000+01:00
The file was added and used in PR #1575 but at some time it should have been lost in the icon resources file, so it was not actually working.
diff --git a/src/icons/icons.qrc b/src/icons/icons.qrc
@@ -70,5 +70,6 @@
         <file alias="project_save">package_save.png</file>
         <file alias="cancel">cancel.png</file>
         <file alias="comment_block">comment_block.png</file>
+        <file alias="hourglass">hourglass.png</file>
     </qresource>
 </RCC>
