update loading library(grid)
- Barplot: replace formals
- replace opts(title="…") by ggtitle("…")
role back to previous version because of ggtitle incompatible with
current ggplot2 version
release of second barplot version "Barplot with plot options" that
contains many options for configuration of the plot
update on Mahalinobis calculator
new: Get info from R-server
new version: Power transformation and Z rank transformation
	- choosing subset of data to calculate lambda for transformation is now
possible
	- "treatment" column can be optionally used for that
- integrated "Ranking Multiparametric Profiles
- new category: "normalization"
- integrated "Normalization Carpenter" into category "normalization"
- integrated "Median and MAD" into category calculators 
- update the Mahalonibis distance to have option to choose the inverted
covariance matrix