Update na12878kb.jar and StingUtils.jar

Based on gsa-stable 2.6.
GATK is up to Java 7, and we had to make many superficial changes to compile it for Java 6 (mainly diamond operator)

Built with:
ant -Dant.build.javac.target="1.6" -Dant.build.javac.source="1.6" clean na12878kb.jar
ant -Dant.build.javac.target="1.6" -Dant.build.javac.source="1.6"
Add checkbox for specifying that an event is complex
Update na12878kb.jar

Update puts isComplexEvent in the tooltip
Built from commit a2241be5315dc871a740cad236315f94361c7915, on jsilter/forIGV.
This version requires Java 7.
Improve date formatting in tooltip for MongoVCFVariant
Set confidence to NA12878KnowledgeBase.InputCallsetConfidence.REVIEW.confidence

Update na12878kb.jar.

Built from commit 2eabd1e770f5b1a5156b772c4601002b0675c29f, on jsilter/forIGV.
Update na1278kb.jar

Based on gsa-unstable/master, commit 1ac46952c83726c50aaffd69ec2428361f5600e8
Add check so that VariantReviewPlugin doesn't get loaded if relevant class can't get loaded
Update chromoNametoStandard so it doesn't alter case of input chromosome

This was an issue with chrX / chrM.
Parse date attribute as a long, instead of trying to cast it

Underlying date attribute is stored as a String of UTC format
Show all variant attributes in popup window, but not in hover-over tooltip

IGV-1980
Only show "Load Review Track" option for variant tracks