add travis indicator to readme
Set travis config to the lowest version of scala that we support.
Link to scaladocs.
Fixed invalid UriEncode functionality
Reverse compatibile because via default encoding argument (UTF-8)
Closes #74
Build with Scala 2.11 by default.

Mostly for the repl improvements.
Fix build warning.
Merge pull request #93 from melezov/0.11.3

Fixed invalid UriEncode functionality
bumping version of async-http-client to next bugfix
Merge pull request #94 from adamdecaf/bump-async

bumping version of async-http-client to next bugfix
realm and path def enhancements
Tweaks to the optional path segment `/?` and `as`.

The `/` verb is already fairly overloaded so I'm calling this one
`/?`. I also limited its parameter type to `Option[String]`, as it's
too easy to serialize some non-primitive by accident with
`Option[Any]`. We may want to also support `Option[AnyVal]`, but I'll
leave that for later (requires fancy typing).

Also added a test for `/?`
Merge branch '0.11.3' into json_on_2.11