1.7.3
  o vignette: use print rather 'knit_print.ggvis'
  o ggvis: include transparency, fix issue position legend
  o rbokeh: use vector instead of column names for ly_hexbin
1.7.2
  o ggplotEsetPlot: enable title/axes labels of type expression
1.7.1
  o fix issue duplicated columns when same column is used for multiple aesthetics (reported as issue in ggplot2: 2.2.1.9000)
1.3.2
  o fix specification default values of fixed aesthetics
1.3.1
  o implement S4 class approach
1.1.2
	o fixes for ggplot 2.2.0: count for stat_bin_hex, center title
	o fix use axis.text.y twice
1.1.1
	o add Rbuildignore
	o test with rbokeh 0.5.0
	o correct documentation to avoid warning R CMD check
0.99.9
	o update documentation
0.99.8
	o fix issue for ggplot2 plot when variable names contain space
0.99.7
	o fix issue: no annotated samples/genes and returnAnalysis set to TRUE
0.99.6
	o fix issue when returnAnalysis and no top elements
0.99.5
	o annotated one gene/sample when topGenes/topSamples is set to 1
0.99.4
	o upgrade package version
0.99.3
	o support object of class 'SummarizedExperiment'
0.99.2
	o increase version number after subscribed to bioc-devel list
0.99.1
	o add extra imports (packages base R) + vignette with clean = FALSE
0.99.0
	o first version of the package submitted to Bioconductor