aweSOM 1.2

Fixed bugs:
  Fixed cell placement in interactive graphs (they were flipped wrt kohonen package, and incorrect for hex topology with odd number of rows)
  Fixed cell placement in smooth distance plot
  Fixed bug in somInit when using PCA initialization (reverted to prcomp)

Improvements:
  New legend for graph, interactive in html, present in svg
  New "cloud" plot
  Improved "smooth distance" plot
  Several improvements in the shiny UI, more user-friendly and stable
  In shiny UI, possibility to change numeric to factor and vice-versa

Misc:
  New logo, and updated UI theme to match


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aweSOM 1.1

Fixed bugs:
  In reproducible script, when data was unscaled it was not in matrix form.
  In the plot panel, the scales option was not available for CatBarplot.
  Variables weights are no longer standardized to sum to 1.
  Boxplot on prototype values is now drawn for the prototype values.

Improvements:
  Added support for categorical variables, and NA values.
  In the plot panel, variables selection changes only when necessary.
  New functions: cdt for complete disjunctive tables, and aweSOMreorder to reorder variables for pretty display.
  Option to hide observations names in the plots.

Misc:
  Added hex-sticker logo.
  Improved appearance of the shiny UI.
  More detailed help messages in UI.
