fix invalid OK_to_edit values

1987/heckbert/.entry.json

@@ -44,7 +44,7 @@
 	{
 	    "file_path" : "FoldSpindleMutilate.pdf",
 	    "inventory_order" : 125,
-	    "OK_to_edit" : false,
+	    "OK_to_edit" : true,
 	    "display_as" : "pdf",
 	    "display_via_github" : false,
 	    "entry_text" : "cultural history of the punch card"

1988/isaak/.entry.json

@@ -44,7 +44,7 @@
 	{
 	    "file_path" : "isaak.output.txt",
 	    "inventory_order" : 180,
-	    "OK_to_edit" : false,
+	    "OK_to_edit" : true,
 	    "display_as" : "text",
 	    "display_via_github" : false,
 	    "entry_text" : "program output"

1993/ant/.entry.json

@@ -84,7 +84,7 @@
 	{
 	    "file_path" : "ants.txt",
 	    "inventory_order" : 150,
-	    "OK_to_edit" : false,
+	    "OK_to_edit" : true,
 	    "display_as" : "text",
 	    "display_via_github" : false,
 	    "entry_text" : "lyrics of the Ants Go Marching song"

2012/zeitak/.entry.json

@@ -68,7 +68,7 @@
 	{
 	    "file_path" : "correct.java",
 	    "inventory_order" : 150,
-	    "OK_to_edit" : false,
+	    "OK_to_edit" : true,
 	    "display_as" : "java",
 	    "display_via_github" : true,
 	    "entry_text" : "example Java source with correct brace (supposedly :-) )"