Bug fixes and minor improvements

Improved features

• CSP fixer
  • *.html.pre_csp files are no longer generated from the original .html's
  • add CoffeeScript to the script types supported by the CSP fixer
• Project templates
  • pined down Polymer version in the templates to latest (was master)
  • Normalization in Chrome app templates manifests
  • fixed typos and made more uniform the Chrome App manifests generated by the project template types that have them
• Chrome App manifest validator: added alwaysOnTopWindows to the list of recognized permissions

Bug fixes

• fix: Bower would fail to run on a bower_components directory and printed an exception to the console
• fix: Few compile-time warnings
• fix File filter and search view are broken