Rendering improvements (#59)

lodash.isEqual is now a dependency
mocha/enzyme/chai/sinon, remove jest
add spec and remove old spec
rendering improvements
cleanup

Author: gor181

.travis.yml

@@ -3,3 +3,14 @@ node_js:
   - "6"
   - "5"
   - "4"
+env:
+  - CXX=g++-4.8
+addons:
+  apt:
+    sources:
+      - ubuntu-toolchain-r-test
+    packages:
+      - g++-4.8
+before_install:
+  - sudo apt-get -qq update
+  - sudo apt-get install libcairo2-dev libjpeg8-dev libpango1.0-dev libgif-dev build-essential g++