Removed redundant tests in test_validators.py since there's test_isurl.py
Added allowed_tlds from http://data.iana.org/TLD/tlds-alpha-by-domain.txt
Added script to easily update the official_top_level_domains for the future
gluon/storage.py
StorageList had a recursion error (please check the implementation before committing)
gluon/tests*
added the fix_path module to avoid those ugly lines at the beginning of each test file
added tests for gluon.contenttype and test_fileutils
added tests for missing Storage methods
niphlod