plotter will now only use tex if it's there
plotter will now only use tex if it's there


Former-commit-id: c9fdb8d4cfb07180db80c08ce4c1c61fe062db16 [formerly c9fdb8d4cfb07180db80c08ce4c1c61fe062db16 [formerly c9fdb8d4cfb07180db80c08ce4c1c61fe062db16 [formerly fa958e589f45ef0c40532c101cb97dcdd189e5e9]]]
Former-commit-id: 096a7bdc46e4fd7db1447cddc30454b72a64f09d
Former-commit-id: 58dd4c3948304dd60c1e8fa0ccd7ff486b2efbd6 [formerly dd61d976e4c65a8b187548a6d89ccbe19ef15fa3]
Former-commit-id: 35af32531d9eeaf718b2219a5cbf82f79c0e9f8d
interrogator/corpkit,interrogator/corpkit