Adding in map reading/writing class and updates to various gui components, trying to get rotation working but failing so far

Conflicts:
	pykat/finesse.py

tracing doesn't require anymore than maxtem 0 so use that for tracing and then return to previous value.

udpdating setup files and requirements. Fixing and simplifying the output select from a kat_run object. Internally it always stores output data as a 2d array, even if noxaxis is used. This simplifies the selection of output data greatly

So far this is not yet fit for general use though.

Conflicts:
	pykat/commands.py

Daniel changed Param to AttrParam for alpha in beamSplitter - seems to have broken FINESSE, so I changed it back

Conflicts:
	pykat/finesse.py