Readability management features

1. Calculate out readability statistics for package
2. Import/Export settings to files
Add readability-presets distribution dir, setup combobox selection

Bundle readability presets in folder.  Add dropdown selector to dialog
Add readability-presets dir to config
Enable preset saving
Add hilighting of missed and OK readability boundary targets
Show proper indicator names instead of ids in dialog box
Add decodeable word and new word functionality
Update package info