avoid paths with double slashes
do not crash when new content source is encountered
improve how errors are constructed
Simplify some POST requests
Improve error unwrapping
Support flagging authors, more strict error control in network tests
use boolean instead of integer for retroactive parameter
Support more moderator actions
version bump
Merge pull request #56 from Livefyre/ks_add_mod_endpoints

Support flagging users, better error handling