Fixed caching behavior in work queue: all files are cached upon request.
Previously, renamed files were not cached, due to deficiencies in the
worker cache structure, but this was fixed in the most recent worker cleanup.
Fixed missing case: caching flag must also be set in submit_simple.
Check for mysql include in multiple places, fixes a build problem on redhat7.
Add ltdl to globus linking.
Altered makeflow_graph_log to divide timestamps to correct digit.
Merge pull request #616 from nhazekam/mf-graph-fix

Altered makeflow_graph_log to divide timestamps to correct digit.
Merge pull request #610 from cooperative-computing-lab/makeflow-wq-caching-bug

Fixed caching of renamed files in makeflow -T wq
Wrap $@ in quotes for correct behavior with space.