buildout: use PORT1 environment variable on Jenkins CI.
Revert "buildout: use PORT1 environment variable on Jenkins CI."

This reverts commit 6244895da67618946955edbcb0d349e6ed97eb0f.

This has no impact at all to testing, since the testing layer does
read the port by itself and configure everything manually based on that
port from the environment (PORT1).
Extend integration tests to test conversion of all common formats we claim to support.
Merge pull request #18 from 4teamwork/lg-extend-integration-tests

Extend integration tests to test conversion of all common formats we claim to support.
Changed tika source to archive.apache.org.