Make JavaProtobufLibrary not exportable to fix publish.
Review Request #1952 - Created March 19, 2015 and submitted
|benjyw, ity, stuhood, zundel|
Currently, publishing a java_library with protobuf deps is borken.
After discussing this on pants-devel, chagning JavaProtobufLibrary to normal JVMTarget.
Fix header years. its 2015!
Revision 2 (+74 -2)