Minor fixes and R4 updates
Added additional parameters that can be passed to ddply
The icd pre-processor now also applies to the test-codes
Added the Quan 2011 weight and the van Walraven 2009 weights
Combined ICD-code string and options passed to ddply
General improvements in text
Added weights
sync

Merge branch 'master' of https://github.com/gforge/comorbidities.icd10

Conflicts:
	R/cmrbdt.calc.R
	inst/examples/cmrbdt.calc_xmpl.R
	man/cmrbdt.calc.Rd
	man/weight.Charlsons.org.Rd