Code formatting
Merge pull request #167 from hmenke/master

Fixed bug in pdb-parser
Removed several swimmer-related functions from the EK that had become depricated, as well as some cleaning up of the code for the release.
Minor change to the EK z testcase
Changed the EK section in the User's Guide to reflect changes in the code
Changed the EK reaction test case to reflect changes to the EK code
Implemented tensor product for the correlations, where you can tensor multiply two different length vectors.
Repaired TcL input for the double correlator.
Added documentation for the tensor_product correlator.
Functions to have the co-moving and the lab frame on the observable level.
Functions to rotate the velocity from the lab to the body frame.
TCL interface for the new commands
Documented new observables and new print command for the velocity of the particle in the body frame.
Make sure that cuda compiler doesn't see mpi.h.
Merge branch 'master' of github.com:espressomd/espresso
Merge branch 'ek_cleanup' of git://github.com/jdegraaf/espresso
Merge branch 'lab_body' of git://github.com/jdegraaf/espresso
Merge branch 'tensor_product' of git://github.com/jdegraaf/espresso
Fixed LB with Lattice class, fixed python interface without LJ.