Added a couple of tests to wavefront and wavefront_master.

git-svn-id: file:///afs/nd.edu/user37/ccl/svn/cctools/trunk@2486 a4d8336d-3463-0410-8bba-c098c45d37a8

Conflicts:

(adding missing files)

	wavefront/test/TR_wavefront_001_sum_test.sh
work_queue: initialize members, catch exceptions in init

Ensure that member fields are initialized first.  Wrap work_queue_* in
try/excep blocks to capture any exceptions that may occur in init.

Conflicts:
	work_queue/src/python/work_queue.binding.py