Adjusting thresholds

scripts/safelint_thresholds.json

 {
     "rules": {
-        "javascript-concat-html": 213,
+        "javascript-concat-html": 205,
         "javascript-escape": 7,
         "javascript-interpolate": 49,
-        "javascript-jquery-append": 111,
-        "javascript-jquery-html": 279,
+        "javascript-jquery-append": 104,
+        "javascript-jquery-html": 276,
         "javascript-jquery-insert-into-target": 27,
-        "javascript-jquery-insertion": 29,
-        "javascript-jquery-prepend": 13,
+        "javascript-jquery-insertion": 26,
+        "javascript-jquery-prepend": 11,
         "mako-html-entities": 0,
         "mako-invalid-html-filter": 27,
         "mako-invalid-js-filter": 207,
@@ -28,5 +28,5 @@
         "python-wrap-html": 264,
         "underscore-not-escaped": 658
     },
-    "total": 2245
+    "total": 2228
 }