Uniform sequence at start of source files
- copyright claim
- license
- file comment
- header guard
- lumiera includes
- library / system includes
Lumiera uses Brittish spelling. Add an according note to the styleguide.
This reverts commit 65bae31de4103abb7d7b6fd004a8315973d3144a.
and reprocessed the wrapping.
Note that the automatic wrapping is not perfect, some manual fixing
by removing some hunks was required.
