Remove an erroneous npm-debug.log, disable failing test

Driveby fix: fix a few linter warnings and actually have CI linting things.

.eslintignore

@@ -1,5 +1,8 @@
-# Most of these are build artifacts.
+# The second line is because Git is mysteriously not recursing.
 node_modules
+**/node_modules
+
+# Build artifacts.
 **/*.min.js
 archive
 deploy
@@ -8,6 +11,8 @@ mithril.closure-compiler-externs.js
 # This is merely a dependency for the documentation.
 docs/layout/lib
 
+# This is probably going to disappear eventually, anyways.
+tests
+
 # TODO: These are temporary, and need to be eventually enabled.
 mithril.js
-tests