Bug fixes and some Bower improvements

Improved features

• Bower:
  • support package specifications with just a version or version range and path omitted, e.g. "package-x": "1.2.3", "package-y": "~1.2.3": the path is resolved using Bower registry based on the package name
  • support "*" as a package specification, e.g. "package-x": "*": the path is resolved as above; the tag resolves to the latest stable
  • support packages whose GitHub repositories have moved to a different GitHub organization (so their URL redirects from https://github.com/OldOrg/package to https://github.com/NewOrg/package)

Bug fixes

• Bower: too frequent or large bower install/update jobs would exceed the GitHub API access rate limit, locking the user out of Bower for a 1-hour timeout period
• when deleting a folder from disk on Windows, CDE might delete the contents of a subfolder represented by a junction point, rather than just delete the junction itself
• the editor was very sluggish on very large files with long lines (e.g. minified package sources)
• editor focus would be lost when switching between files via Ctrl-Tab
• sporadic installation failures on Bit9-protected Windows machines should be slightly less probable now, although there is no complete solution yet

Other changes

• pinned the version of Polymer packages in the Polymer-related templates to latest (was master): this should result in more stability
• added more USB devices to the supported list (LG Optimus v3)
• some UI adjustments and refinements