fixed retry policy typo
make sure only base versions get compared
normalized spacing and fixed comment
dont use syn.restPUT for S3 URLs because we want the HTTP response
add synapseclient.check_for_updates() and a rudimentary synapseclient.release_notes()
fix bug getting Data entities with no associated files
removed exit_on_blacklist based on code review
collect diagnostic information during chunked file upload
Merge pull request #115 from cbare/develop

check_for_updates, comparing versions, fixes to retry_policy, _chunkedUploadFile and file-less Data entities