Deprecation warnings in sbt build definition

[gkossakowski]

With latest master, here's what I get:

> reload plugins
[info] Loading global plugins from /Users/grek/.sbt/0.13/plugins
[info] Loading project definition from /Users/grek/scala/zinc/project
> printWarnings
[info] Updating {file:/Users/grek/scala/zinc/project/}project...
[info] Resolving org.fusesource.jansi#jansi;1.4 ...
[info] Done updating.
[warn] /Users/grek/scala/zinc/project/Scriptit.scala:31: method apply in object InputTask is deprecated: Use another InputTask constructor or the `Def.inputTask` macro.
[warn]   def scriptitTask = InputTask((scriptitBase, scriptitTestName)((dir, name) => (s: State) => scriptitParser(dir, name))) { input =>
[warn]                      ^
[warn] /Users/grek/scala/zinc/project/Scriptit.scala:77: method binaryVersion in object CrossVersion is deprecated: Use CrossVersion.scalaApiVersion or CrossVersion.sbtApiVersion
[warn]       val binaryVersion = CrossVersion.binaryVersion(version, "")
[warn]                                        ^
[warn] /Users/grek/scala/zinc/project/Scriptit.scala:81: method libraryJar in trait ScalaProvider is deprecated: see corresponding Javadoc for more information.
[warn]         property("library") -> provider.libraryJar.getAbsolutePath,
[warn]                                         ^
[warn] /Users/grek/scala/zinc/project/Scriptit.scala:82: method compilerJar in trait ScalaProvider is deprecated: see corresponding Javadoc for more information.
[warn]         property("compiler") -> provider.compilerJar.getAbsolutePath,
[warn]                                          ^
[warn] /Users/grek/scala/zinc/project/Scriptit.scala:83: method libraryJar in trait ScalaProvider is deprecated: see corresponding Javadoc for more information.
[warn]         property("extra") -> Path.makeString((provider.jars.toSet - provider.libraryJar - provider.compilerJar).toSeq),
[warn]                                                                              ^
[warn] /Users/grek/scala/zinc/project/Scriptit.scala:83: method compilerJar in trait ScalaProvider is deprecated: see corresponding Javadoc for more information.
[warn]         property("extra") -> Path.makeString((provider.jars.toSet - provider.libraryJar - provider.compilerJar).toSeq),
[warn]                                                                                                    ^
[warn] /Users/grek/scala/zinc/project/Scriptit.scala:85: method libraryJar in trait ScalaProvider is deprecated: see corresponding Javadoc for more information.
[warn]         property("home") -> provider.libraryJar.getParentFile.getParentFile.getAbsolutePath
[warn]                                      ^

It would be great to get rid of them.