Minor javadoc fixes.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1598031 13f79535-47bb-0310-9956-ffa450edef68
Added a converter for Units. This is needed for some feature operations.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1598049 13f79535-47bb-0310-9956-ffa450edef68
Removed accidental ID.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1598059 13f79535-47bb-0310-9956-ffa450edef68
DefaultFeatureType now implements FeatureType.
We had to disable the check against infinite recursivity in 'isAssignableFrom'.
The previous check was wrong anyway (we need to compare feature pairs, not only
the base feature type). We will implement a new recursivity check later.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1598371 13f79535-47bb-0310-9956-ffa450edef68
DefaultAssociationRole now implements FeatureAssociationRole.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1598380 13f79535-47bb-0310-9956-ffa450edef68
DefaultOperation now implements Operation.
This complete the implementation of GeoAPI interfaces derived from ISO 19109.
The next step will be to implement GeoAPI interfaces for feature instances (as opposed to feature types).


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1598383 13f79535-47bb-0310-9956-ffa450edef68
Merge from the JDK8 branch.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK7@1598385 13f79535-47bb-0310-9956-ffa450edef68
Merge from the JDK7 branch.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK6@1598388 13f79535-47bb-0310-9956-ffa450edef68