koji 1.4.0

[Mike McLean]

The 1.4.0 release of koji is available here:
https://fedorahosted.org/releases/k/o/koji/

Updating from 1.3.2 involves a number of schema changes. A schema update 
script is included (docs/schema-upgrade-1.3-1.4.sql).

The mead branch has been merged. Most the that functionality is disabled 
by default. You can enable it by setting EnableMaven to yes in hub.conf.

Summary of changes:
- Merge mead branch: support for building jars with Maven *
- support for building appliance images *
- soft dependencies for LiveCD/Appliance features
- smarter prioritization of repo regenerations
- package list policy to determine if package list changes are allowed
- channel policy to determine which channel a task is placed in
- edit host data via webui
- description and comment fields for hosts *
- cleaner log entries for kojihub
- track user data in versioned tables *
- allow setting retry parameters for the cli
- track start time for tasks *
- allow packages built from the same srpm to span multiple external repos
- make the command used to fetch sources configuable per repo
- kojira: remove unexpected directories
- let kojid to decide if it can handle a noarch task
- avoid extraneous ssl handshakes
- schema changes to support starred items