Squashed commit with the setup of documentation:

commit 045b07b2ae82acee5bbbf9840f2c8762e2542343
Author: Till Junge <till.junge@altermail.ch>
Date: Sat Feb 3 02:00:40 2018 +0100

small title change

commit 8613646a92c983c262e9ad05c6dbeb626c949fb5
Author: Till Junge <till.junge@altermail.ch>
Date: Sat Feb 3 01:55:28 2018 +0100

typo

commit 988c0a516f66a0d86962a99e43eb8f2731ee7b6c
Author: Till Junge <till.junge@altermail.ch>
Date: Sat Feb 3 01:48:59 2018 +0100

full coverage

commit 97cecf1aa6a8c3a4cfdc84b93718f0dbdd83b194
Author: Till Junge <till.junge@altermail.ch>
Date: Fri Feb 2 11:17:05 2018 +0100

before rearranging license section

commit 6464caaabf74a9f72fc6fdd76e5175ae852a4ac8
Author: Till Junge <till.junge@epfl.ch>
Date: Thu Feb 1 17:34:27 2018 +0100

fixed breathe, testing on read the docs

commit 86ca56f0ac293fa1275a0d877d7ea82ee8c5f816
Author: Till Junge <till.junge@epfl.ch>
Date: Thu Feb 1 17:11:08 2018 +0100

added breathe, testing on read the docs

commit afefaea9a6a71bb9e352ba67795a967f7e1fd687
Author: Till Junge <till.junge@epfl.ch>
Date: Thu Feb 1 14:42:12 2018 +0100

experiment with rtd theme

commit b457ed4af6a97d5013d0566be1bea83a4301943f
Author: Till Junge <till.junge@epfl.ch>
Date: Thu Feb 1 14:29:38 2018 +0100

beginning of sphinx