Initial work on jdbc service
More work on jdbc service
Add delete methods
Condense API a bit
Add a simple README for now
Make sure we rollback and close connection on tx timeout
Remove batched parameters for now, update to latest codegen/proxygen changes.
Use a connection like API so we don't have to manaage connections for transactions.
Rename transaction and connection jdbc service api methods
Add some docs to get the feel for things
Only return a JdbcConnection from the service
  - Support transactions with setAutoCommit to false
  - commit/rollback now on JdbcConnection
Merge pull request #1 from vert-x3/initial-work

Jdbc Service