No more ambient modules for tns-core-modules/* subpackages.

- Use path mappings in tsconfig.json to resolve module typings
- Only use ambient mobules for global API's
- Move single-file modules to a subdir with the same name so that
we can provide a hand-written typing next to it (via package.json)
- Delete all mentions of tns-core-modules.d.ts
- Delete reference d.ts assembly build steps. Not needed anymore.
- HACK! Use a <reference> for global typings in application.d.ts
to avoid publishing a separate @types/tns-core-modules package.
- Rename declarations.d.ts to tns-core-modules.d.ts to preserve
JS project mappings in references.d.ts (the only place we use those)

tns-core-modules/utils/debug.d.ts

@@ -1,67 +1,65 @@
-declare module "utils/debug" {
-	/**
-	 * A runtime option indicating whether the build has debugging enabled.
-	 */
-	export var debug: boolean;
-	
-	/**
-	 * A class encapsulating information for source code origin.
-	 */
-	export class Source {
-		
-		/**
-		 * Creates a new Source instance by given uri, line and column.
-		 */
-		constructor(uri: string, line: number, column: number);
-		
-		/**
-		 * Gets the URI of the source document;
-		 */
-		uri: string;
-		
-		/**
-		 * Gets the line in the source document.
-		 */
-		line: number;
-		
-		/**
-		 * Gets the position in the source document.
-		 */
-		column: number;
-	
-		/**
-		 * Get the source of an object.
-		 */
-		public static get(object: any): Source;
-		
-		/**
-		 * Set the source of an object.
-		 */
-		public static set(object: any, src: Source);
-	}
-	
-	/**
-	 * An Error class that provides additional context to an error.
-	 */
-	export class ScopeError extends Error {
-		/**
-		 * Creates a new ScopeError providing addtional context to the child error.
-		 * @param child The child error to extend.
-		 * @param message Additional message to prepend to the child error.
-		 */
-		constructor(child: Error, message?: string);
-	}
+/**
+ * A runtime option indicating whether the build has debugging enabled.
+ */
+export var debug: boolean;
 
-	/**
-	 * Represents a scope error providing addiot
-	 */
-	export class SourceError extends ScopeError {
-		/**
-		 * Creates a new SourceError by child error, source and optional message.
-		 * @param child The child error to extend.
-		 * @param source The source where the error occured.
-		 * @param message Additonal message to prepend along the source location and the child error's message.
-		 */
-		constructor(child: Error, source: Source, message?: string);
-	}
+/**
+ * A class encapsulating information for source code origin.
+ */
+export class Source {
+    
+    /**
+     * Creates a new Source instance by given uri, line and column.
+     */
+    constructor(uri: string, line: number, column: number);
+    
+    /**
+     * Gets the URI of the source document;
+     */
+    uri: string;
+    
+    /**
+     * Gets the line in the source document.
+     */
+    line: number;
+    
+    /**
+     * Gets the position in the source document.
+     */
+    column: number;
+
+    /**
+     * Get the source of an object.
+     */
+    public static get(object: any): Source;
+    
+    /**
+     * Set the source of an object.
+     */
+    public static set(object: any, src: Source);
+}
+
+/**
+ * An Error class that provides additional context to an error.
+ */
+export class ScopeError extends Error {
+    /**
+     * Creates a new ScopeError providing addtional context to the child error.
+     * @param child The child error to extend.
+     * @param message Additional message to prepend to the child error.
+     */
+    constructor(child: Error, message?: string);
+}
+
+/**
+ * Represents a scope error providing addiot
+ */
+export class SourceError extends ScopeError {
+    /**
+     * Creates a new SourceError by child error, source and optional message.
+     * @param child The child error to extend.
+     * @param source The source where the error occured.
+     * @param message Additonal message to prepend along the source location and the child error's message.
+     */
+    constructor(child: Error, source: Source, message?: string);
 }