fix(debugger): breakpoint isn't set properly for windows

Author: hankduan

lib/debugger/clients/explorer.js

@@ -25,7 +25,7 @@ WdRepl.prototype.initClient_ = function() {
 
     client.setBreakpoint({
       type: 'scriptRegExp',
-      target: 'selenium-webdriver/executors.js',
+      target: '.*executors\.js',
       line: 37
     }, function() {});
   });

lib/debugger/clients/wddebugger.js

@@ -33,7 +33,7 @@ WdDebugger.prototype.initClient_ = function() {
 
     client.setBreakpoint({
       type: 'scriptRegExp',
-      target: 'selenium-webdriver/executors.js',
+      target: '.*executors\.js',
       line: 37
     }, function() {
       console.log('press c to continue to the next webdriver command');