initial commit of package refactoring, not ready yet.
updated gitignore
updated data.xls example file
moved mathprog file into new folder, and created a templated version
cleaned up files from inst
added dev playground to test AccentModelInput
refactored AccentModelInput with patientskills
started implementing the optimize function and the AccentSolution class
Removed wrong equation from MathProg model. now works
Corrected solution of mathprog model file in optimize method
Require ggplot
Added schedule function to the package
Added shiny functionality with think data function "runShinyAccent()"
Added parameters to model
Added skills section to model
created AccentModelOutput class, started shiny runner, started with plotting scripts
Removed accent reference in server
Merge branch 'dev-kenny' into dev

* dev-kenny:
  created AccentModelOutput class, started shiny runner, started with plotting scripts

Conflicts:
	pkg/R/input.R
	pkg/R/optimize.R
	pkg/R/run.R
updated test.R and graph.R in Package DESCRIPTION
resolved WARNING on shiny dependency
resolved warnings on global function, make use of AccentModelSolution in shiny server
updated project preferences