Merge pull request #132 from holtgrewe/hotfix/swift_test_bugs

[FIX] Fixing bug in test that caused the swift index test to not compile.
Merge pull request #134 from holtgrewe/hotfix/edge_stump_initialization

[FIX] Properly initializing members of EdgeStump.
Merge pull request #136 from holtgrewe/hotfix/sak_test_output

[FIX] Adjusting SAK output to empty lines in FASTA fix.
Merge pull request #138 from holtgrewe/hotfix/valgrind_app_tests

Hotfix/valgrind app tests
[FIX] Fixing output of mason2 app tests.
Merge pull request #140 from holtgrewe/hotfix/mason2_expected_output

[FIX] Fixing output of mason2 app tests.
Merge pull request #142 from holtgrewe/hotfix/python_suppressions

[INTERNAL] Supressing all warnings from Python binary in valgrind.
[DOX] Small typo in graph_interface.h
[INTERNAL] Adding .gitattributes files.
[NOP] Normalizing line endings according to .gitattributes in earlier commit.
Merge pull request #152 from holtgrewe/master_gitattributes

[INTERNAL,NOP] Adding .gitattribute file and normalizing line endings accordingly.
[FIX] Fixing .gitattributes for tests for FASTA files.
[BUILD] adapted GKN plugin.properties generation to the possible mixture of git and svn
Merge pull request #172 from aiche/fixing-ctd-version-generation

Fix for GKN version generation after move to git
[NOP] Normalize line endings.
[NOP] Normalize line endings.
Merge pull request #163 from holtgrewe/master_gitattr_text

[FIX] Fixing .gitattributes for tests for FASTA files.
[FIX] use gnu_parallel functions only if OpenMP is enabled
[FEATURE] added travis scripts for continuos integration (courtesy of Stephan Aiche)
[FIX] fixed permissions