Steps for https://github.com/sroze/ngInfiniteScroll/issues/316

Steps for merging issues-316 ngInfiniteScroll

1. Create a set of ssh keys using
    
    ssh-keygen -t rsa -b 4096 -C "<email> "
    
    Note: the keep the file name to be `id_rsa_nginfinite` if you change the file name then make sure you replace the references of id_rsa_nginfinite in the `make-bower-build.sh`
2. Go to https://github.com/sroze/ngInfiniteScroll-bower/settings/keys and add the .pub key here, Also make sure that this has Write access, so that travis should be able to push the commits

3. In the `ngInfiniteScroll` repo encrypt the private key

    travis encrypt-file <private_key_name>

4. The step 3 will output some openssl command something like 
    openssl aes-256-cbc -K $encrypted_f635dc9b0bb1_key -iv $encrypted_f635dc9b0bb1_iv -in id_rsa_nginfinite.enc -out id_rsa_nginfinite -d
   replace that in the `before install` section of travis.yml

5. Update travis.yml with the new Encryption label and commit authour email

  env:
    global:
      - ENCRYPTION_LABEL: <encryption label>
      - COMMIT_AUTHOR_EMAIL: <commit_author_email> 
    You can find the encryption label in the output of step 4, Here in `encrypted_f635dc9b0bb1_key`, f635dc9b0bb1 is your encryption label.

6. commit only .enc file in the `ngInfiniteScroll` Repo not the private keys.