twweaks to parameter
parameter with truth and value
remove value from parameter
added numpy array properties
changed parmater structure - can now have non-grouped params
make 1d normal prior
split out tests for 1d normal
comment out ND tests
don't walk over frozen parameters
fix walk
fix adding parameters to group
working through tests updating
make nparameters compute on the fly, exclude frozen params
allow frozen set to 0
skip frozen properly
devectorize
prior sampling working
change bad var name
added freeze and thaw methods, tests
remove redundant tests