Change name of debugger option in debug mode.
Defer import of pdb until know we actually need it to reduce base memory.
Add the --enable-coverage option for coverage analysis under debug mode of mod_wsgi-express.
Ensure debugger is disabled when debug mode is not on rather than having to always check for debug mode flag at same time.
Added the --enable-profiler option to mod_wsgi-express debug mode to capturing profiler data.
Working directory not added to sys.path when running in mod_wsgi-express debug mode.