Rework external dependency tracking and multi-projects

Reduce AnalysisCallback interface:
  remove discovery
  simplify dependency notification methods
Use map of classpath entry to Analysis for locating
  source API for external dependencies
Handle classpath changes by locating class
  on classpath and either locating Analysis/Source
  as above or comparing Stamp.  This requires storing
  the class name of a binary dependency now.
Make this process aware of full classpath, including
  boot classpath

interface/src/main/java/xsbti/AnalysisCallback.java

@@ -7,43 +7,21 @@ import java.io.File;
 
 public interface AnalysisCallback
 {
-	/** The names of classes that the analyzer should find subclasses of.*/
-	public String[] superclassNames();
-	/** The names of annotations that the analyzer should look for on methods and classes.*/
-	public String[] annotationNames();
-	/** Called when the the given superclass could not be found on the classpath by the compiler.*/
-	public void superclassNotFound(String superclassName);
 	/** Called before the source at the given location is processed. */
 	public void beginSource(File source);
-	/** Called when the a subclass of one of the classes given in <code>superclassNames</code> is
-	* discovered.*/
-	public void foundSubclass(File source, String subclassName, String superclassName, boolean isModule);
-	/** Called when an annotation with name <code>annotationName</code> is found on a class or one of its methods.*/
-	public void foundAnnotated(File source, String className, String annotationName, boolean isModule);
 	/** Called to indicate that the source file <code>source</code> depends on the source file
 	* <code>dependsOn</code>.  Note that only source files included in the current compilation will
 	* passed to this method.  Dependencies on classes generated by sources not in the current compilation will
 	* be passed as class dependencies to the classDependency method.*/
 	public void sourceDependency(File dependsOn, File source);
-	/** Called to indicate that the source file <code>source</code> depends on the jar
-	* <code>jar</code>.*/
-	public void jarDependency(File jar, File source);
-	/** Called to indicate that the source file <code>source</code> depends on the class file
-	* <code>clazz</code>.*/
-	public void classDependency(File clazz, File source);
-	/** Called to indicate that the source file <code>sourcePath</code> depends on the class file
-	* <code>classFile</code> that is a product of some source.  This differs from classDependency
-	* because it is really a sourceDependency.  The source corresponding to <code>classFile</code>
-	* was not incuded in the compilation so the plugin doesn't know what the source is though.  It
-	* only knows that the class file came from the output directory.*/
-	public void productDependency(File classFile, File sourcePath);
+	/** Called to indicate that the source file <code>source</code> depends on the top-level
+	* class named <code>name</code> from class or jar file <code>binary</code>. */
+	public void binaryDependency(File binary, String name, File source);
 	/** Called to indicate that the source file <code>source</code> produces a class file at
 	* <code>module</code>.*/
 	public void generatedClass(File source, File module);
 	/** Called after the source at the given location has been processed. */
 	public void endSource(File sourcePath);
-	/** Called when a module with a public 'main' method with the right signature is found.*/
-	public void foundApplication(File source, String className);
 	/** Called when the public API of a source file is extracted. */
 	public void api(File sourceFile, xsbti.api.Source source);
 }