lint: Add documentation lint check for JavaScript spelling.

docs/changelog.md

@@ -39,7 +39,7 @@ All notable changes to the Zulip server are documented in this file.
 - Migrated development environment setup scripts to tools/setup/.
 - Expanded test coverage for several areas of the product.
 - Simplified the API for writing new webhook integrations.
-- Removed most of the remaining javascript global variables.
+- Removed most of the remaining JavaScript global variables.
 
 ### 1.3.12 - 2016-05-10
 - CVE-2016-4426: Bot API keys were accessible to other users in the same realm.

docs/code-style.md

@@ -23,7 +23,7 @@ The Vagrant setup process runs this for you.
 
 `lint-all` runs many lint checks in parallel, including
 
--   Javascript ([JSLint](http://www.jslint.com/))
+-   JavaScript ([JSLint](http://www.jslint.com/))
 
     > `tools/jslint/check-all.js` contains a pretty fine-grained set of
     > JSLint options, rule exceptions, and allowed global variables. If
@@ -119,9 +119,9 @@ string, use the `id` function, as it will simplify future code changes.
 In most contexts in JavaScript where a string is needed, you can pass a
 number without any explicit conversion.
 
-### Javascript var
+### JavaScript var
 
-Always declare Javascript variables using `var`:
+Always declare JavaScript variables using `var`:
 
     var x = ...;
 
@@ -129,12 +129,12 @@ In a function, `var` is necessary or else `x` will be a global variable.
 For variables declared at global scope, this has no effect, but we do it
 for consistency.
 
-Javascript has function scope only, not block scope. This means that a
+JavaScript has function scope only, not block scope. This means that a
 `var` declaration inside a `for` or `if` acts the same as a `var`
 declaration at the beginning of the surrounding `function`. To avoid
 confusion, declare all variables at the top of a function.
 
-### Javascript `for (i in myArray)`
+### JavaScript `for (i in myArray)`
 
 Don't use it:
 [[1]](http://stackoverflow.com/questions/500504/javascript-for-in-with-arrays),
@@ -229,7 +229,7 @@ Whitespace guidelines:
     used for inline dictionaries, put no space before it and at least
     one space after. Only use more than one space for alignment.
 
-### Javascript
+### JavaScript
 
 Don't use `==` and `!=` because these operators perform type coercions,
 which can mask bugs. Always use `===` and `!==`.

docs/directory-structure.md

@@ -46,17 +46,17 @@ templating systems.
 
 ----------------------------------------
 
-### Javascript and other static assets
+### JavaScript and other static assets
 
-* `static/js/` Zulip's own javascript.
+* `static/js/` Zulip's own JavaScript.
 
 * `static/styles/` Zulip's own CSS.
 
 * `static/images/` Zulip's images.
 
-* `static/third/` Third-party javascript and CSS that has been vendored.
+* `static/third/` Third-party JavaScript and CSS that has been vendored.
 
-* `node_modules/` Third-party javascript installed via `npm`.
+* `node_modules/` Third-party JavaScript installed via `npm`.
 
 * `assets/` For assets not to be served to the web (e.g. the system to
             generate our favicons).

docs/roadmap.md

@@ -150,7 +150,7 @@ While the Zulip server has a great codebase compared to most projects
 of its size, it takes work to keep it that way.
 
 * [Migrate most web routes to REST API](https://github.com/zulip/zulip/issues/611)
-* [Finish purging global variables from the Zulip javascript](https://github.com/zulip/zulip/issues/610)
+* [Finish purging global variables from the Zulip JavaScript](https://github.com/zulip/zulip/issues/610)
 * [Finish deprecating and remove the pre-REST Zulip /send_message API](https://github.com/zulip/zulip/issues/730)
 * [Split Tornado subsystem into a separate Django app](https://github.com/zulip/zulip/issues/729)
 * [Clean up clutter in the root of the zulip.git repository](https://github.com/zulip/zulip/issues/707)
@@ -186,7 +186,7 @@ of its size, it takes work to keep it that way.
 * [Overhaul new contributor documentation](https://github.com/zulip/zulip/issues/677)
 * [Replace closure-compiler with a faster minifier toolchain](https://github.com/zulip/zulip/issues/693)
 * [Add support for building frontend features in React](https://github.com/zulip/zulip/issues/694)
-* [Use a javascript bundler like webpack](https://github.com/zulip/zulip/issues/695)
+* [Use a JavaScript bundler like webpack](https://github.com/zulip/zulip/issues/695)
 
 ## Documentation
 

tools/lint-all

@@ -294,7 +294,11 @@ html_rules = whitespace_rules + [
      'description': "`placeholder` value should be translatable."},
     ]
 json_rules = [] # just fix newlines at ends of files
-markdown_rules = markdown_whitespace_rules
+markdown_rules = markdown_whitespace_rules + [
+    {'pattern': ' [jJ]avascript',
+     'exclude': set(['README.dev.md']), # temporary exclusion to avoid merge conflicts
+     'description': "javascript should be spelled JavaScript"},
+]
 txt_rules = whitespace_rules
 
 def check_custom_checks_py():