Fix reference manual compilation.

- remove units in generated documentation since they are
inconsistent and leads to errors in Latex (eg. [L/T^2] is not valid)
- fix generation of version
- minor fix in documentation itself
Remove name key for output_stream

- remove the name key
- use the base filename to reference the output stream in
  error messages
- comment out static methods for name resolution
Update Jenkins configuration script.

- add 1.8.0_master branch
- add complete deleting of the build space