chore(travis): split out the docs e2e tests into their own travis job

Previously, they were in the 'unit' job to save travis VMs, but this
was confusing and made it more difficult to track down errors easily.

Author: juliemr

.travis.yml

@@ -9,9 +9,11 @@ branches:
 env:
   matrix:
     - JOB=unit BROWSER_PROVIDER=saucelabs
+    - JOB=docs-e2e BROWSER_PROVIDER=saucelabs
     - JOB=e2e TEST_TARGET=jqlite BROWSER_PROVIDER=saucelabs
     - JOB=e2e TEST_TARGET=jquery BROWSER_PROVIDER=saucelabs
     - JOB=unit BROWSER_PROVIDER=browserstack
+    - JOB=docs-e2e BROWSER_PROVIDER=browserstack
     - JOB=e2e TEST_TARGET=jqlite BROWSER_PROVIDER=browserstack
     - JOB=e2e TEST_TARGET=jquery BROWSER_PROVIDER=browserstack
   global:

scripts/travis/build.sh

@@ -16,6 +16,7 @@ if [ $JOB = "unit" ]; then
   grunt test:unit --browsers $BROWSERS --reporters dots
   grunt ci-checks
   grunt tests:docs --browsers $BROWSERS --reporters dots
+elif [ $JOB = "docs-e2e" ]; then
   grunt test:travis-protractor --specs "docs/app/e2e/**/*.scenario.js"
 elif [ $JOB = "e2e" ]; then
   if [ $TEST_TARGET = "jquery" ]; then