Generate attributions during build process

Signed-off-by: Gary Kim <[email protected]>

Author: gary-kim

.gitignore

@@ -3,6 +3,7 @@ chromium_build.zip
 firefox_build.zip
 artifacts/
 dist/
+src/web_accessible_resources/libraries.txt
 
 # Node
 node_modules/

.travis.yml

@@ -12,6 +12,7 @@ matrix:
       firefox: latest-unsigned
     script:
     - npm test
+    - npm run libraries
     - npm run webpack:build:firefox
     - npm run test:build
     - npm run integration:firefox
@@ -20,6 +21,7 @@ matrix:
       chrome: stable
     script:
     - npm test
+    - npm run libraries
     - npm run webpack:build:chromium
     - npm run test:build
     - npm run integration:chromium