Version 1.1.1
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* fixed bug #9 - symbols containing only whitespaces and empty strings are now automatically replaced with the default symbol

Version 1.1.0
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* `ncols` cross-platform functioning improved
* works on platforms "x86_64-pc-linux-gnu", "x86_64-apple-darwin10.8.0", and "i386-w64-mingw32" (i.e., darwin, linux, and windows)

Version 1.0.1
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* documentation improved for CRAN release

Version 1.0
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* `hr` function to create and print horizontal rules
* `ncols` function to detect the number of terminal window columns and optionally set the `width` option
