Bug 912121 - Rewrite require / import to match source tree. rs=devtools

In a following patch, all DevTools moz.build files will use DevToolsModules to
install JS modules at a path that corresponds directly to their source tree
location.  Here we rewrite all require and import calls to match the new
location that these files are installed to.

Author: jryans

addon-sdk/source/lib/dev/debuggee.js

@@ -11,7 +11,7 @@ module.metadata = {
 const { Cu } = require("chrome");
 const { Class } = require("../sdk/core/heritage");
 const { MessagePort, MessageChannel } = require("../sdk/messaging");
-const { require: devtoolsRequire } = Cu.import("resource://gre/modules/devtools/Loader.jsm", {});
+const { require: devtoolsRequire } = Cu.import("resource://gre/modules/devtools/shared/Loader.jsm", {});
 const { DebuggerServer } = devtoolsRequire("devtools/server/main");
 
 const outputs = new WeakMap();

addon-sdk/source/lib/dev/toolbox.js

@@ -15,7 +15,7 @@ const { contract, validate } = require("../sdk/util/contract");
 const { each, pairs, values } = require("../sdk/util/sequence");
 const { onEnable, onDisable } = require("../dev/theme/hooks");
 
-const { gDevTools } = Cu.import("resource:///modules/devtools/gDevTools.jsm", {});
+const { gDevTools } = Cu.import("resource:///modules/devtools/client/framework/gDevTools.jsm", {});
 
 // This is temporary workaround to allow loading of the developer tools client - volcan
 // into a toolbox panel, this hack won't be necessary as soon as devtools patch will be