Bug 1387893 - Update JS dependencies

Packages have been updated as follows:
* `angular*`, `react*` and `enzyme`: Unchanged (latest patch version),
  for the same reasons as in bug 1364010.
* all other packages have been bumped to their latest minor version.
* caret version ranges have been converted to exact versions, for
  parity with the rest of the versions and to make it easier to
  identify which version is being used without having to view the
  lock file.

This was performed using:
```
sudo yarn global add npm-check-updates
ncu --upgrade --upgradeAll --semverLevel minor
ncu --upgrade --upgradeAll --semverLevel major --reject '/^(angular|react|enzyme).*/'
```

The lock file was then regenerated using:
```
rm -rf node_modules/ yarn.lock
yarn install --no-bin-links
```

Other bugs will handle the more involved `angular*`, `react*`,
`enzyme` and `neutrino*` updates (see deps of bug 1364010).

package.json

@@ -20,35 +20,35 @@
     "angular-ui-bootstrap": "1.3.3",
     "angular-ui-router": "0.4.2",
     "bootstrap": "3.3.7",
-    "deepmerge": "1.3.2",
+    "deepmerge": "1.5.0",
     "font-awesome": "4.7.0",
-    "hawk": "6.0.1",
+    "hawk": "6.0.2",
     "jquery": "3.2.1",
     "jquery.scrollto": "2.1.2",
-    "js-yaml": "3.8.4",
-    "json-e": "^2.1.1",
+    "js-yaml": "3.9.1",
+    "json-e": "2.1.1",
     "json-schema-defaults": "0.3.0",
     "lodash": "4.17.4",
-    "metrics-graphics": "^2.11.0",
+    "metrics-graphics": "2.11.0",
     "mousetrap": "1.6.1",
     "neutrino": "4.3.1",
     "neutrino-lint-base": "4.3.1",
     "neutrino-preset-react": "4.2.3",
-    "ngreact": "0.4.0",
-    "numeral": "^2.0.6",
+    "ngreact": "0.4.1",
+    "numeral": "2.0.6",
     "raw-loader": "0.5.1",
     "react": "15.3.2",
     "react-dom": "15.3.2",
-    "taskcluster-client": "2.3.0"
+    "taskcluster-client": "2.5.0"
   },
   "devDependencies": {
     "angular-mocks": "1.5.11",
     "enzyme": "2.7.1",
     "eslint": "3.19.0",
     "istanbul-instrumenter-loader": "2.0.0",
-    "jasmine-core": "2.6.1",
+    "jasmine-core": "2.7.0",
     "karma": "1.7.0",
-    "karma-coverage-istanbul-reporter": "1.2.1",
+    "karma-coverage-istanbul-reporter": "1.3.0",
     "karma-firefox-launcher": "1.0.1",
     "karma-jasmine": "1.1.0",
     "neutrino-preset-karma": "4.2.1",