Allow custom ports for connections to SQL server DBs

[shdblowers]

Expected Behavior

That I can set any port for the connection in my config, like so:

config :my_app, MyApp.Repo,
  adapter: MssqlEcto,
  hostname: "localhost"
  port: "9494"

Current Behavior

Port config is ignored.

Possible Solution

Implement code change to allow it to happen, most likely will need changes to Mssqlex as well.

Context

Trying to use custom ports.

Your Environment

• MssqlEcto version: 0.1
• Ecto version: 2.1
• Elixir version: 1.4
• Erlang version: 19
• Microsoft SQL Server version: 2016
• Operating System and version: Ubuntu Linux 16.04
• Link to your project: N/A

[jbachhardie]

You can still do ports right now by specifying hostname: "localhost,4000" for example, although I'm all for a PR that makes that more elegant.

[shdblowers]

Fixed by #17