Bump dispatch to version 0.11.3

[DustinChaloupka]

This bumps the dispatch version to 0.11.3. I was unsure if there were specific tests to be added for each specific version of dispatch instead of just the tests handling whatever the default dispatch version were, but they all passed.

[eed3si9n]

Currently the announced "latest" is 0.11.2 on http://dispatch.databinder.net/Dispatch.html. See also https://groups.google.com/d/msg/dispatch-scala/iy12POc81LM/udzLH14ajcMJ

[eed3si9n]

Also what's the difference between httpclients_dispatch0111.scala.template and httpclients_dispatch0113.scala.template?

[DustinChaloupka]

The only differences are the changes in the method names.

setConnectionTimeoutInMs -> setConnectTimeout

Also did not know that the 0.11.3 version not "officially" released, but was working with something that is using it so figured I would open this PR. Feel free to close it if will not be used. :)

[eed3si9n]

I think this pull request overall is useful if source change was required due to dispatch/reboot#116, but could we keep the defaultDispatchVersion to 0.11.2?

[DustinChaloupka]

Changed.

[eed3si9n]

Thanks for the contribution.