added dhist to plots.R
removed 'Vm0' from trait names; changed Vm0 to Vcmax in priors table
changed root_respiration_factor to root_respiration_maintenance; root_respiration_rate to root_respiration_total
fixed bug in query.bety.traits that caused incomplete querying of data

 specifically, this required replacing 'synonyms' with 'trait.synonym.dictionary' and querying for all prior variables plus their synonyms; previously, code dropped synonyms.
fixed covariate query for Vcmax, added 'airT' as acceptable covariate
fixed root_respiration_rate query, now matches covariate query used for Vcmax
added #BBB to allow beta.o ~ beta(a,b) to be bounded away from 1 when b < 1
added T(,0.9999) as upper bound on beta.o when pr.dist = beta and pr.param.b < 1
added roxygen documentation
added Vcmax, root_respiration arrhenius transformations
fixed root_resp. and vcmax temperature calculation to only use airT if rootT/leafT not available
fixed error with rm when too many config files to remove, used find ... -delete instead
fixed transformations in model.specific.R
replaced prior.name with trait.name, use of separate variables is no longer needed since model-specific prior names have been removed
fixed Vcmax, SLA, root respiration queries
removed trait synonuyms; these have been hard coded into trait specific queries in query.bety.trait.data.R
fixed name of root_respiration_rate
fixed substitution of #\\BBB with T(,0.9999) for truncation of beta distn
updated tests/settings.pavi.xml
changed root_respiration_rate variable name