Tidy up deployment process

Anticipating now needing to deploy API to AWS, so removed Heroku
deploy code from Travis.

.travis.yml

@@ -1,42 +1,15 @@
-sudo: required
 language: node_js
 
-node_js:
-- '4.5.0'
-
 env:
   global:
+  # Config needed to push docs to Github Pages
   - GH_REF=github.com/hotosm/oam-catalog.git
   - PRODUCTION_BRANCH=master
+  # GH_TOKEN for pushing docs to Github Pages
   - secure: AhiKIqAYPeXH1HjhYza/VdMJrp8wCri5WNRY+Kdkb4piYEK20dAQPVgcVT2EM1tvlyZL5Q0ZU4rtnATkJOU3k9DQHI99xVjk4MjnqfpkrM9iZtif6o9xDZwf9iWwBeuu9MmKH0tsvKhktxrJkzZ7vAThurZVz89ZPoCAXuudyqk=
 
 services: mongodb
 
-before_install:
-- echo "Installing libvips..."
-- sudo add-apt-repository -y ppa:lovell/precise-backport-vips
-- sudo apt-get update
-- sudo apt-get install -y libvips-dev
-- echo "Completed libvips installation."
-- echo "Installing latest mongodb"
-- sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv 7F0CEB10
-- echo "deb http://repo.mongodb.org/apt/ubuntu "$(lsb_release -sc)"/mongodb-org/3.0 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.0.list
-- sudo apt-get update && sudo apt-get install -y mongodb-org
-- sudo service mongod restart
-- echo "Completed installing mongodb"
-- echo "Installing gdal-bin"
-- sudo apt-get install gdal-bin
-- echo "Completed installing gdal-bin"
-- chmod +x ./.build_scripts/docs.sh
-
 after_success:
-- "./.build_scripts/docs.sh"
+  - ./.build_scripts/docs.sh
 
-deploy:
-  provider: heroku
-  api_key:
-    secure: iZGqyYrx4i7+MPDa0Lopoe/TULu9DNWc2UsYqB8+f39xNhpRNHqIR0lz5VFWl6oQugj0XeZnHpN+f4W+2jfy6ThyTUs42uFAE43HThVipPhf28NdeuCJVje5Qu2ZjMv9spRskalxBrJjdJ8G9C5Vxwx1+LmnjVcyvsk0ycSA38o=
-  app: oam-catalog
-  on:
-    repo: hotosm/oam-catalog
-    branch: master

newrelic.js

@@ -9,11 +9,6 @@ exports.config = {
    * Array of application names.
    */
   app_name: ['oam-catalog'],
-  /**
-   * Your New Relic license key.
-   * The license key is set through the env variable NEW_RELIC_LICENSE_KEY
-   */
-  license_key: 'license key here',
   logging: {
     /**
      * Level at which to log. 'trace' is most useful to New Relic when diagnosing