6503defbf56c Bug fix in the interface

c0a0b275107b add test periodic lumped mass

461babc7c047 Updating docker images to newer version of OSs

bd657e0a6869 Merge branch 'features/friction_examples' into 'master'

74f972690d3a add include

b35bf118a6e3 Merge remote-tracking branch 'origin/bugfixes/akantu-as-library-in…

96936e4f516d Trying to improve code quality