allow option to specify download dir for cef and node
remove default grunt task from npm install
don't DrawMenuBar() for every menu item
Merge pull request #372 from adobe/jasonsanjose/jenkins

Specify downloads folder path to allow Jenkins to cache CEF and Node downloads
Fix OpenLiveBrowser issue with Chrome ghost window (e.g. window w/ no tabs)
Merge pull request #379 from fungl164/fungl164/chrome-live-osx-2

Fix OpenLiveBrowser issue with Chrome ghost window
Merge pull request #377 from adobe/randy/win-menu-performance-2

Don't DrawMenuBar() for every menu item