Merge branch 'release/0.4.6' into develop
Remove the new README that is uploaded to pypi and remove the manifest as
we no longer need it.
Removed a note about using Fabric 1.4 that no longer applies.
Merge branch 'develop' of github.com:Proteus-tech/profab into develop
Added some documentation about using a reservation name instead of a DNS
host name.
Changed hard coded class names on some class methods to use the class passed
in. This should help when overriding behaviour by sub-classing. Also made
the server decorator to configure Fabric public.
Add condition to support postgres version 8.4 and 9.1.
modify postgres.py and test
Improved support for differing versions of Postgres.

ChangeLog and version bump for last merge from AttakornP.
added option -x
Stop psql's script from hanging.
Bumped version number.
Merge branch 'release/0.4.7'