Fix markup in math operator documentation

In the documentation, surround the new operators with `<tt>` tags instead of Markdown-style backticks, since this is HTML.
Merge pull request #3336 from roryokane/fix-math-operator-docs-markup

Fix markup in math operator documentation
index.html
In docs, move commas out of code

The commas separating these three keywords are not code themselves – not what the user would write – so they should be outside of the `<tt>` tags.

Edits the table in the section [Operators and Aliases](http://coffeescript.org/#operators).
In docs, move commas, part 2

I had missed that the next line had comma-separated operators, too.
Merge pull request #3337 from roryokane/fix-operator-docs-commas

In docs, move commas out of code
Fix a typo causing module.paths to be always set as the cwd.

`options.fileName` was used instead of `options.filename`.
Merge pull request #3340 from benbria/master

Fix a typo causing module.paths to be always set as the cwd.
CoffeeScript 1.7.1
через минус -> camelCase (респект Полу Миллеру)