Fixed DomainCollector and added example

 - added domain_read_mpi example
 - fixed getTotalDomain in DomainCollector
 - removed unnecessary entry in FileCreationAttr
Fixed example description
Fixed error check in DCDataSet
Close #6 Travis Examples Support

- test install lib
- Compile examples, too
- compile with clang, too
- tests/run_* scripts with optional parameter
Merge pull request #7 from ax3l/topic/examplesTravis

Close #6 Travis Examples Support
Updated comments in examples
Added missing licence headers in examples
Updated travis (include master branch)