Fixes problem #22 by adding "raster" parameter to heatmapPlotWrapper (passed to "useRaster" in graphics::image function) set to FALSE by default. "raster" is set to TRUE on server instances for better performance. heatmapPlotWrapper also prints better labels (cluster ind, long numbers shortened by kb, Mb, etc.). Labels font size responds to font.cex param now.
Merge branch 'master' of github.com:Przemol/seqplots