Removed unused image files.
Removed unused css file 'winlets' and connected unused dependencies.
More unused images removed.
First batch of implementations for html usage:\n- Created comments can now be interacted with immediately.\n-Clicking on a comment causes us to scroll to it.\n-General cleanup of unused/refactored code.
Continued feature integration for HTML5:
- Cancelling comments now removes annotations.
- Removing comments now removes their annotation.
Fixed HTML5 error in previous commit:
- Deleting a comment now only removes annotation if the comment is the root of the thread.
Merge branch 'html' of https://github.com/nbproject/nbproject into html