updated buildout infrastructure
updated .gitignore
ported to plone.app.testing (1st batch)
use credentials from plone.app.testing
removed obsolete compatibility tests
fixed base clase calls
fixed all tests with plone.app.testing
documented changes
we don't need mr.developer for the buildout
removed unused code found by frosted
Merge pull request #8 from plone/tomgross-ptc

Ported tests to plone.app.testing