Add maxListeners config option
Add some ctor docs
Remove CryptoJS, no longer used.
Upgrade grunt to latest.

Also adds (experimental) dox documentation generator. Run with `grunt dox`. Documentation will be placed under build/docs/.
Changed directory structure to be more like server's. src/js/*.js -> src/js/ripple/
Add correct handling of NaN in product_human and ratio_human.
Fix library build in grunt.
Merge branch 'addcpperrs' into develop
Fix rsign.js require path.
Add support for AccountSet and account_root flags.
Version 0.7.13
Merge branch 'vinnie' of github.com:vinniefalco/ripple-lib into vinniefalco-vinnie
Fix reporting of offline status to new states.
Fixed adding negative to zero. Fixes #6.
Security: Enable local_signing by default.
Bump version to 0.7.14
Merge branch 'develop'