TRQ-1784, bugzilla #231. Fix the crash around running qalter on entire arrays. To fix it, give each modify_job() call its own copy - with no reply set - of the batch request. Have it manage each one.
Merge branch 'master' of https://github.com/adaptivecomputing/torque
Fix a syntax error in the previous commit.
Fix some errors in the changes to how qalter is processed. Namely, account for the fact that modify_job_work() also calls modify_job().