do not duplicate code for loading pems RData and raw

instead use code in load.pems.raw.file.R
more editing.  trying to cull duplicate code

modified:   lib/load.pems.raw.file.R
new file:   lib/vds.aggregate.R
modified:   lib/vds.processing.functions.R
modified:   lib/vds_impute.R
not loading co-located libs properly.  try this
if else got all screwy
forgot to package vds.aggregate.R
apparently means changed in R.  Use colMeans instead
save with "." in front of RData
split out some functions into utils.R file
bleh, missing store.amelia.chains
sourcing another component doesn't seem to work right
write output to nested directory, rather than root directory

instead of filling up D??/... with lots of imputed and rdata files, save
them down at the pointy end of the stick.

utility function get.save.path from full path to file
modified:   lib/utils.R

use get.save.path
modified:   lib/load.pems.raw.file.R
modified:   lib/vds_impute.R
stupid dot missing in front of RData

modified:   lib/load.pems.raw.file.R
save sanity.check failures to couchdb state doc

modified:   lib/vds.processing.functions.R
modified:   lib/vds_impute.R
fix bug, enhance error report a bit
done with refactor for now Merge branch 'refactor/freshlook'