Improve handling of derived namespaces in models.

Change-Id: I18fe323877a61c7a2313f68c86abb8465f8940fc
Merge "Improve handling of derived namespaces in models."
added license information

Change-Id: If11f64929bcc285758e7b4acc76ef6adb11fd7aa
Merge "added license information"
Improve namespace handling.

Change-Id: I7618b010b63b4b31550a03f7c2c1b45e85be1f74
updated license information

Change-Id: I134e2a235bf3f8d78d78732ff34143566cd3372e
Fixed namespace handling.

Change-Id: Ie10c9fef6b178bf0d7e823dc0d929cd0b60d6410
Added property "hasWriter" to content-type registration.

Used for the new-ontology wizard to only show writable formats.

Change-Id: I73a7666004c72e868d610cc6d483ca2a285864b8
Merge "Added property "hasWriter" to content-type registration."