fix resource deps: generate more cleanly - no targets if there are no prereqs. no empty lines. fix resource copy performance: remove debug fix filters: behave if someone puts 2 identically named filters into the plugin dir by mistake.

#!/usr/bin/env python
"A script for invoking coverage from the command line."

import sys
del sys.path[0] # Otherwise "import coverage" finds this file!
import coverage

coverage.the_coverage.command_line(sys.argv[1:])