Removed extra files, simplified npm install command

.travis.yml

@@ -6,11 +6,13 @@ env:
   global:
   - secure: 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
 script:
-- npm install grunt grunt-cli grunt-contrib-clean grunt-regex-replace
+- npm install grunt-cli
 - PATH="$PWD/node_modules/grunt-cli/bin:$PATH" grunt racket-mini
 - git config --global user.name "Travis CI"
 - git config --global user.email "travis@nobody.com"
-- git add -A . &> /dev/null && git commit -m "auto-commit" &>/dev/null
+- git add -A . &> /dev/null
+- git rm -f .gitignore Gruntfile.js
+- git commit -m "auto-commit" &>/dev/null
 - git log --oneline --decorate --graph -10
 - git push --force --quiet "https://${GH_TOKEN}@github.com/jsmaniac/scribble-mathjax.git" HEAD:refs/heads/v2.6-racket-mini
 branches:

Gruntfile.js

@@ -316,6 +316,7 @@ module.exports = function(grunt) {
         "composer.json",
         ".npmignore",
         "package.json"
+        ".travis.yml"
       ]
     },
     "regex-replace": {