Moving all the WebUI pkg download in fetch_packages.py including npm modules.
Adding format as 'file' which if specified then the file gets copied directly to dest
Updating SlickGridEnhancementPager.patch based on latest web-core.
Adding openSans.patch, to remove protocol field from URL to download http request while over https
Changes such that npm install will install the packages in tmp cache and from
there it will be copied to current directory/node_modules.
If already installed, it will not install again.
Adding patch update in SlickGridEnhancementPager.patch and adding some download files
Merge pull request #22 from Juniper/fetch-pkg

Moving all the WebUI pkg download in fetch_packages.py including npm mod...