Add mocha tests
Add travis-ci config
Only build for node 0.10 for now
Add badges for travis, dependency tracker, and npm
Bump version to 0.1.1
Remove test section from readme
Add base10 support

Not everyone nor every use case can depend on base58 for generated ids,
so I am adding support for built in `bignum.toString(10)` which will
return a string representation of the flake in base 10.

`bignum.toString(16)` is irrelevant as it is already supported as
`Buffer.toString('hex')`.
Missing README.md updates
Merge pull request #1 from erickrdch/base10

Add base10 support
Make base58 optional
Bump version to 0.1.2
Merge branch 'master' into win32