Add Meteor support

[Meteor](http://www.meteor.com/), the framework we're using, has its own package system. We added code to export the global `sjcl` symbol in a cross-platform compliant way, as explained [here](https://github.com/awwx/misc/wiki/Packaging-Existing-Libraries-for-Meteor).

However, the test fails already at the stage of compilation because the find and replace manipulation breaks the code. Additionally, documentation does not work as well because we had to rename the `sjcl` symbol.

@estark37, would you mind having a look?