Move utils into other Util modules.
Reformat all code to 80 cols.
Reorder code and add more comments.
Use long form style program args, e.g. --silent rather than -s
Finish implementation of form upload with wget
Fix reporting of server error messages for upload (curl & builtin)
Implement collecting of ETags for curl and wget.
Fix wget for case of 304 not modified response (wget uses exit code 8).
Rework transport configuration phase.