PlotFTIR 1.1.0

• Added ability to set default language in options(). (#10)
• Added ability to highlight one or more samples in spectra. (#15)
• Added ability to add a background shaded band (like a wide marker)
  to indicate a given range. (#16)
• Added attributes to imported data to simplify internal calculation
  of thingslike y axis units. (#17)

PlotFTIR 1.0.0

• Initial Release & CRAN Submission.