remove check for settings.CENTRAL_SERVER on zip_kalite
zip_kalite zips the embedded kalite, not central
fix importing of zip_kalite utility functions
fix the place where we search for python.sh
look for fle_utils.platforms instead of utils.platforms
fix location of KALITE_PATH again
KHANLOAD_CACHE_DIR is in kalite, not in centralserver
use relative imports when using functions in zip_kalite
Merge pull request #24 from aronasorman/232

Cleanup to get download packaging to work again