Merged requested to merge CFD-Xing/nektar:fix/segmentation-fault-no-time-integration-method into master
There is a segmentation fault when no time integration method is specified for unsteady problem (See issue #134 (closed) and #260 (closed)).
Add a check condition before printing out type integration name in summary.
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Please add any other information that could be useful for reviewers.
[ ] Functions and classes, or changes to them, are documented. [ ] User guide/documentation is updated.
Changelog is updated. [ ] Suitable tests added for new functionality.
Contributed code is correctly formatted. (See the contributing guidelines). [ ] License added to any new files.
No extraneous files have been added (e.g. compiler output or test data files).