lp:1217880 Treat as username entire path component w/o further restrictions.
lp:1217880 Treat as username entire path component w/o further restrictions.

This fixes handling Crowd email-line usernames which contain ",", "@", etc.


Linaro/lava-server,OSSystems/lava-server,OSSystems/lava-server,Linaro/lava-server,Linaro/lava-server,OSSystems/lava-server,Linaro/lava-server