…bility with obs dicts.

Also add logic for caching emission line variances from MLE.

  Offloads likelihood computations to NoiseModel objects that are
  attached to individual Observation instances.  Also updates lnprobfn
  to handle lists of observations, and adds some docstrings and
  rough tests.

fitting ubdates for observation lists; dosctring modernization.

…alble.

Numerous tweaks to observation generation from old style dicts;
Changes to test_eline for new predict() api.

…tion.

  Observation object methods to convert to structures, fits, h5, etc.
  Better docstrings.
  New Observation.Lines subclass.
  Fix import error in sedmodel.

  Includes option to try to pickle model params.

…ume FilterSet; require sedpy >= 0.3

Moves the SSPBasis and FastStepBasis to galaxy_basis module.
Removes the ssp_basis, dust_basis, and boneyard modules.
Removes the get_spectrum method from SSPBasis and subclasses; this is handled by SpecModel
Remove various multicomponent hacks.

…ore descriptive fit_mle_elines()

…th noise modeling.

…e polynomial fitting; comment out broken bestfit model saving.

…nstrumental smoothing.

… class for uncorrelated kernels (like jitter).

Treat case of dummy observation that is not any of the recognized kinds;
Bump python version requirement.

…t in lnlike_testing

…tances.