Xtrack Version 0.1.1

Fix:

• (zeta, delta) update in linear transfer matrix

Xtrack version 0.1.0

New features:

• Electron lens element has been introduced (thanks @phermes)
• Linear Transfer matrix element has been introduced (thanks @xbuffat).
• PyHEADTAIL interface has been improved to support slicing features (thanks @xbuffat)
• Multithreading via OpenMP is now fully supported (it can be enabled when creating the context, e.g. xo.ContextCpu(omp_num_threads=8). At the source code level the developer needs to use the annotation \\start_per_particle_block which introduces the necessary directives (see documentation).
• Particles coordinate names in xtrack, xline and xpart have been aligned. Now it is possible to create xtrack particles form xpart or xline particles simply by xtrackpart = xt.Particles(**xpartpart.to_dict()). The function xt.pyparticles_to_xtrack_dict has been removed.