Fix warnings when generating documentation
Remove -Xlint:deprecation flag when building
sbt tries to pass it to `javadoc` when running `sbt doc`, which doesn't
Use Integer.valueOf and Long.valueOf
This fixes some deprecation warnings in newer versions of Java.
Use latest version of sbt
Remove non-JUnit tests
There isn't a good way to run them via sbt, and they weren't very useful
Run JUnit tests using `sbt test` with junit-interface plugin
Use Integer.valueOf() instead of new Integer()
Fixes a deprecation warning.
Warn about deprecated method calls when compiling