v0.1.1

• Adds a new -cat flag to filter the status codes. Use it like this:

  httpurr -list -cat 2

  ᗢ httpurr
  ==========
  
  Status Codes
  ------------
  
  ------------------ 2xx ------------------
  
  200    OK
  201    Created
  202    Accepted
  203    Non-Authoritative Information
  204    No Content
  205    Reset Content
  206    Partial Content
  207    Multi-Status
  208    Already Reported
  226    IM Used

• More rigorously tests the error paths

• Returns more consistent exit codes; flag errors will exit with error code 2 and other errors will return error code 1