Merge pull request #205 from holtgrewe/hotfix/app_tests_py

[TEST,FIX] Fixing test helper module seqan.app_tests.
Merge pull request #212 from weese/fix/test_index_stree_iterators

[FIX] hotfix for stree iterators on empty string sets
Merge branch 'hotfix/travis-disable-openmp-warnings'
Merge pull request #214 from weese/master

Disable OpenMP warnings for travis and clang
[FIX] ported ship from TR1 to C++11
[FIX] replaced deprecated finite() by isfinite()
[FIX] silence C++11 warning argument “unused during compilation: -std=c++11“
Merge branch 'hotfix/remove-warnings' into develop