GitLab

- putting own header file first
  o for reason see http://www.cplusplus.com/forum/articles/10627/#msg49679 and
                   http://www.cplusplus.com/forum/articles/10627/#msg49680

- remove 'using namespace' from header files
- remove 'using std::string' and 'using std::abs' from header files

For reason see:
o http://stackoverflow.com/questions/5849457/using-namespace-in-c-headers

A loss LossDataSink is initiated with the constructor, then particles are added (and locally stored).
In the finalize method all data is written to an ASCII or H5 file, depending on the NEW option ASCIIDUMP.

Testing of this is ongoing, there are maybe some gliches, watch out. 

Regressiontest will follow!

@Yianjun: please test the CYCLOTRON related PROBES and STRIPPER element!

		MINR, MAXR, MINZ, MAXZ. 
- if a particle is out of cyclotron aperture or out of the field map, 
   it will be deleted after this step and its parameters are recorded in the *.loss file
- change data type of particle id from int to size_t
- many minor cosmetics of display massage

- use forward declaration where possible
- remove unused includes

    - removing unused file
    - moved fieldlayout, mesh and layout to OpalData
    - started using smart pointers, removed lots of issues with destructors