Fix elisp-lint download URL.

.travis.yml

@@ -29,7 +29,7 @@ install:
         sudo apt-get install -qq emacs-snapshot &&
         sudo apt-get install -qq emacs-snapshot-el emacs-snapshot-gtk;
     fi
-  - mkdir -p lib && curl https://raw.github.com/nschum/elisp-lint/stable/elisp-lint.el > lib/elisp-lint.el
+  - mkdir -p lib && curl https://raw.githubusercontent.com/nschum/elisp-lint/stable/elisp-lint.el > lib/elisp-lint.el
 
 script:
   $EMACS --version && $EMACS -Q --batch -l lib/elisp-lint.el -f elisp-lint-files-batch *.el