GUI – Pasting Plain Text

By default, the QTextEdit class that EditBox is derived from accepts rich text (formatted text).  The solution for this matter was simply to call the setAcceptRichText() function with false as the argument to prevent pasting rich text.  This call was added to the constructor of EditBox.

While adding this to the constructor, it was noticed that the EditBox class was essentially empty, deriving from QTextEdit adding no new functionality.  The delete and select all action functions in MainWindow did more that just call a functions in edit box, so this code was moved to new functions in EditBox.  Since delete is a reserved name, the delete text function was named remove().

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