Merge pull request #21 from tomrink/master

Display level control for depth buffer enabling and other minor changes outilined in the commits
Allow user to label every Nth contour line [1375]
Merge pull request #22 from tommyjasmin/master

Allow user to label every Nth contour line [1375]
add a few custom javadoc tags, update API links [1055]
Merge pull request #23 from tommyjasmin/master

add a few custom javadoc tags, update API links [1055]
change empty string check to be backward-compatile with Java 1.5 [0]
Merge pull request #24 from tommyjasmin/master

change empty string check to be backward-compatile with Java 1.5 [0]
back to 1.6 features [0]
Merge pull request #25 from tommyjasmin/master

back to 1.6 features [0]
Move to Java 1.6 for target
Merge pull request #26 from tomw2/isempty

Move to Java 1.6 for target
Move testing to use Java 1.6
Merge pull request #27 from tomw2/testscript

Move testing to use Java 1.6
A couple more moving to 1.6
Merge pull request #28 from tomw2/morebuild16

A couple more moving to 1.6
Add mailmap to improve "git shortlog -nse"
No more warnings, completely clean build [1055]
Merge pull request #29 from tommyjasmin/master

No more warnings, completely clean build [1055]
Javadoc cleaning, new visaddeps.jar compiled with 1.6 and now includes 'dods/dap/functions' code
Merge pull request #30 from tomw2/jdocstuff

Javadoc cleaning, new visaddeps.jar compiled with 1.6 and now includes '...