Fix authors metadata key name
Add information on current maintainer
Enhancements to the README
Add credit for my current employer
Fix typo of profile ID

This typo prevents GenericSetup from finding the upgrade step for the
new metadata version.
Enhance description of the upgrade step for web users
Use a shorter, easier to understand upgrade step

No need to jump to a second file to see what the upgrade step does.

This funcitonality is present in the GenericSetup 1.6+, introduced
with Plone 4.0.
PEP8 fixes
Update distutils keywords metadata regarding audio support
List all directly used packages as dependencies in setup.py
buildout: add omelette and z3c.dependencychecker
buildout: avoid fatal error on bootstrap sequence

The latest plone pins down distribute to 0.6.28. With this version,
both on Python 2.6 and Python 2.7 I am witnessing an issue very
similar to #301 of virtualenv:

  https://github.com/pypa/virtualenv/issues/301

A fix for this is included in 0.6.29.