apop_map(_sum) properly threads data-row mappings. .inplace='v' to return NULL.
name->title is a ptr; name->column => name->col
minor documentation changes
removed apop_strip_dots
apop_data_(get|set|ptr)_(ti|it|tt|ii) entirely deprecated
name->title is a ptr; name->column => name->col
removed apop_settings_alloc, apop_settings_group_alloc
change apop_row to set up an apop_data set, not a gsl_vector
change default for getting apop_data pages to case-insensitive search, not regex
Apop_settings_set sets model->error='s' on error
redid the path trace for MLE
Remove apop_(matrix|vector)_increment
Some mu and sigmas => μ and σ
minor cleanup
consolidate vector_var and vector_weighted_var

Same with cov, mean, weighted_skew, and weighted_pop.
upgrade model p, ll, cdf to return long double (was double)
Remove score from the apop_model object; use the vtable mechanism.
vtable-ify predict and parameter_model; vtable mechanism improvements
Estimate returns void (was apop_model*)

Also, chnage m1base, m2base ==> mbase1, mbase2
Estimate returns void (was apop_model*)

Also, change vbase, m1base, m2base ==> vsize, msize1, msize2