Release v0.1.0

Added:

• BucketClient.createBucket() method to create a bucket PR-10
• TokenClient.createToken() method to create a token PR-4
• ServerClient.serverInfo() method to get server info PR-3
• ServerClient.getList() method to get a list of the buckets with their
  stats PR-16
• ServerClient.isAlive() method to check if the storage engine is
  working PR-17
• TokenClient.getTokens() method to get a list of tokens PR-20
• EntryClient.writeRecord(Bucket bucket, Entry<?> body) method to add a record to a
  bucket PR-25
• EntryClient.getRecord(Bucket bucket, Entry<?> body) method to get a record from a
  bucket PR-25