allow to call models with data dict or table with ene column
allow call with data for radiative models
adapt examples to separate particle distribution
Merge branch 'partdist'
change __call__ in radiative models to flux and sed methods
move docs out of api dir, change path to examples in docs
Change names

ene -> energy
seedspec -> seed_photon_fields
pdist -> particle_distribution
add all False ul column in build_data_table
avoid keyword conflict in docs
avoid name conflicts in docs
Make autocorr time message optional to work with older emcee versions
Use log.warning instead of log.warn to avoid deprecation warning on
Python 3.3
Fix a few sphinx links