Minor adjustments making easier the merge to trunk.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1629789 13f79535-47bb-0310-9956-ffa450edef68
Upgrade NetCDF dependency.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK8@1629790 13f79535-47bb-0310-9956-ffa450edef68
Merge from JDK8 branch.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK7@1629791 13f79535-47bb-0310-9956-ffa450edef68
Merge from the JDK7 branch.


git-svn-id: https://svn.apache.org/repos/asf/sis/branches/JDK6@1629792 13f79535-47bb-0310-9956-ffa450edef68