output now correctly returns detector values when using out['name']. If yaxis is used to specify multiple outputs values per detector the result of out[name] is a 2d array

adding in new photodiode object which has f1,phi1,f2,phi2,etc., properties so that they can be tuned/put/set. Not fully transffered over from previous one yet.

Large amount of changes to the param object which now include being able to put and set parameters and commands. Also adding the modulator component.

adding string conversion for detectors and components to return its name, you can then get outputs like out[kat.pd1] or out['pd1']

want to use things such as '1n' in pykat, it just needs
to be used during the init constructor which is used when
reading finesse code.

demodulations.

Adding in more parsing for finesse commands. Can no specify a chunk of finesse codee. Various other fixes included too. Currently GUI isn't working.