todo notes added
todo notes added
class added, html safe moved

jsonKeys class added. basically an enum of the associative array keys used for toArray, which has a major purpose of being a json object. the html safe method moved to the controller, in an abstract class that is inherited by the handlers
class added, html safe moved

jsonKeys class added. basically an enum of the associative array keys used for toArray, which has a major purpose of being a json object. the html safe method moved to the controller, in an abstract class that is inherited by the handlers
load added to excelWorkbook

a load function is used to populated the member variables of the object instead of calling it in the constructor. the model file has been changed to call load on the workbook.
merged cells handled

if ANY merged cells are found, an error is through. this has to be corrected as per the todo notes in the file.
excelError has been changed a bit, allows errorTypes to the UI can decide what to do for specific errors.
excelWorkbook has a function to check if the data has been loaded correctly and throws error if not.
The UI has a basic object that can display error messages based of the thrown error type.