making the code more python3 capable

    Making plt-> dst conversion a bit clearer
    new function plt.get_dst returns a dst object
    function plt.save_dst forces you to provide a file name (and use get_dst)

    "dic_cls" in LATTICE class updated according with the update of lib_tw_elem.py

    (1) ERROR_STAT/DYN_FILE command implemented. (2) The initial comment part updated.

    initial files for sphinx-doc

    fixed plt.save_dst

    print was not working correctly on both python2 and 3
    this has been tested to give correct result on both

    documentation/readme edits

    other minor fixes

(unsure how this worked before)

new function plt.get_dst returns a dst object
function plt.save_dst forces you to provide a file name (and use get_dst)

See BPWP-462
the configuration works, but transition to resolved
does not (so keywords fixes, closes etc cannot be used)

- current convert A vs mA
- forgot to write mass (= mc2)
- using file write() rather than print function
print was not working correctly on both python2 and 3
this has been tested to give correct result on both

(was not working on my python2)
added plt.save_dst()
fixed pack function in dst.save() for python3

replaced xrange -> range (py3 compatibility)

made sure forward compatibility is preserved

made all print statements python3 safe
absolute import

major new features:
 - support for python3

A way around for 0 emittance (which could happen, for example, in LEBT or when all the particles are lost when the MEBT chopper is on) was extended to x and y plane for the PARTRAN class.

fix for IS energy levels (use keV instead of MeV when max(E)<0.1)

new example manipulate_lattice with the example of Ryoichi
some minor changes to the example
Trying again Jira.. Resolves BPWP-409

if it works should move task to state "Done"
Resolves BPWP-409

this commits also tests jira integration
Resolves BPWP-409

An example to load a TraceWin lattice file, manipulate it, and save to a new file. See "example.py" inside the dir.

- DENSITY class updated to support ver 9.

Ryoichi noticed the issue

resembles TraceWin distribution plot