Log Message:
Update sysutils/fabric to 1.9.0

Upstream changes:
-----------------

1.9.0 2014-06-08

    [Bug] #965: Tweak IO flushing behavior when in linewise
 (& thus parallel) mode so interwoven output is less frequent.
 Thanks to @akidata for catch & patch.
    [Feature] #741: Add env.prompts dictionary, allowing users to set
 up custom prompt responses (similar to the built-in sudo prompt
 auto-responder.) Thanks to Nigel Owens and David Halter for the patch.
    [Feature] #1082: Add pty passthrough kwarg to upload_template.
    [Support]: Modified packaging data to reflect that Fabric requires
 Paramiko < 1.13 (which dropped Python 2.5 support.)
    [Support] #1105: Enhance setup.py to allow Paramiko 1.13+ under
 Python 2.6+. Thanks to to @Arfrever for catch & patch.
    [Support] #1106: Fix a misleading/ambiguous example snippet in the fab
 usage docs to be clearer. Thanks to @zed.
    [Feature] #1101: Reboot operation now supports custom command.
 Thanks to Jonas Lejon.
    [Feature] #938: Add an env var env.effective_roles specifying roles used
 in the currently executing command. Thanks to Piotr Betkier for the patch.
    [Feature] #1078: Add .command and .real_command attributes to local
 return value.
 Thanks to Alexander Teves (@alexanderteves) and Konrad Hałas (@konradhalas).

1.8.4 2014-06-08

    [Support] #1105: Enhance setup.py to allow Paramiko 1.13+ under Python
 2.6+. Thanks to to @Arfrever for catch & patch.
    [Bug] #898: Treat paths that begin with tilde “~”
 as absolute paths instead of relative.
 Thanks to Alex Plugaru for the patch and Dan Craig for the suggestion.

1.8.3 2014-03-21

    [Support]: Modified packaging data to reflect that Fabric requires
 Paramiko < 1.13 (which dropped Python 2.5 support.)