Use docker for Travis builds.

Using docker will result in faster build times, as well as faster build *start* times.

Also updated documentation and Make in order to accommodate local development as opposed
to Travis.

.travis.yml

@@ -2,6 +2,7 @@ addons:
   apt:
     packages:
     - aspell
+    - aspell-en
     - g++
     - gcc
     - git
@@ -21,6 +22,7 @@ addons:
     - python-pip
     - python-software-properties
 language: python
+sudo: false
 python:
   - "2.7"
 install:

Makefile

@@ -20,9 +20,8 @@ install-wheels:
 install-python:
 	./scripts/install-python.sh
 
-
 install-js:
-	sudo npm config set loglevel warn
+	npm config set loglevel warn
 	npm install
 
 install-nltk-data:
@@ -39,8 +38,10 @@ javascript:
 install-test:
 	pip install -q -r requirements/test.txt
 
+install-sys-requirements: install-system install-node
+
 install-dev:
-	sudo gem install sass
+	gem install sass
 	pip install -q -r requirements/dev.txt
 
 install: install-wheels install-python install-js install-nltk-data install-test install-dev javascript

README.rst

@@ -47,6 +47,7 @@ To install all dependencies:
 
 .. code:: bash
 
+    make install-sys-requirements
     make install
     make install-dev
 

scripts/download-nltk-data.sh

 #!/usr/bin/env bash
 
 PYTHON=`which python`
-sudo $PYTHON -m nltk.downloader stopwords maxent_treebank_pos_tagger wordnet -d /usr/local/share/nltk_data --quiet
+$PYTHON -m nltk.downloader stopwords maxent_treebank_pos_tagger wordnet --quiet