Bug 1395688 - Update jsshell for minifying Fennec JS code; r=nalexander

Update the host jsshell, which is used for minifying Fennec JS code, to
the one from the 56 release, so minification works again.

MozReview-Commit-ID: K87XQrAbC9p

--HG--
extra : rebase_source : 9ae4aad02ca11bdde0d2da9f0bb98fb5e83769d1

mobile/android/config/tooltool-manifests/android-x86/releng.manifest

@@ -17,11 +17,12 @@
     "unpack": true
   },
   {
-    "size": 4906080,
-    "digest": "d735544e039da89382c53b2302b7408d4610247b4f8b5cdc5a4d5a8ec5470947b19e8ea7f7a37e78222e661347e394e0030d81f41534138b527b14e9c4e55634",
+    "size": 6856444,
+    "visibility": "public",
+    "unpack": true,
+    "digest": "d68dd7d31b0153095ecf5cde5837fb1f95dc6e3f799d496fb764f7afeb9c6095c332467177c3aa54d3749b1901e0d6fa84c42162526e764e8a9d2196a0189861",
     "algorithm": "sha512",
-    "filename": "jsshell.tar.xz",
-    "unpack": true
+    "filename": "jsshell.tar.xz"
   },
   {
     "version": "rustc 1.19.0 (0ade33941 2017-07-17) repack",

mobile/android/config/tooltool-manifests/android/releng.manifest

@@ -17,10 +17,10 @@
     "unpack": true
   },
   {
-    "size": 4906080,
+    "size": 6856444,
     "visibility": "public",
     "unpack": true,
-    "digest": "d735544e039da89382c53b2302b7408d4610247b4f8b5cdc5a4d5a8ec5470947b19e8ea7f7a37e78222e661347e394e0030d81f41534138b527b14e9c4e55634",
+    "digest": "d68dd7d31b0153095ecf5cde5837fb1f95dc6e3f799d496fb764f7afeb9c6095c332467177c3aa54d3749b1901e0d6fa84c42162526e764e8a9d2196a0189861",
     "algorithm": "sha512",
     "filename": "jsshell.tar.xz"
   },