protr version 0.2 init
PCM features in progress
refactoring
added doc for new Rdata
Xiao Nan -> Nan Xiao; added readPDB(); enriched README
renamed function description and data
MDS and BLOSUM finished
refined README
refactored extractDescScales and extractPropScales
add ref for BLOSUM
par and two seq alignment and go similarity almost done
parSeqSim and parSeqSim almost done
finishing vignette
finishing up 0.2-0
reduced figure resolution to pass the pdf compress test; this is the 0.2-0 version push to CRAN