In this commit I have added the 'official' versions 0.1.24 and 0.1.25 to the
repo, and also created a new bitcore-dev.js that is not included in the repo.
bitcoin-dev.js is what we will use for development. When we define a new
version, we create a new bitcore-x.x.x.js file, and point bitcore-latest.js to
that. Note that the bitcore-x.x.x.js files should always be the "main" bundle,
which does not include BIP39 or BIP70, or other large packages.