Currently search and replace honors the case typed into the search dialog. For
example, if I have the text:

    public void setCharProperty(char value) {
        char oldValue = this.charProperty;
        this.charProperty = value;
        support.firePropertyChange("charProperty", oldValue, value);
    }

with a search text of char and a replace text of string, I end up with:

    public void setstringProperty(string value) {
        string oldValue = this.stringProperty;
        this.stringProperty = value;
        support.firePropertyChange("stringProperty", oldValue, value);
    }

Which isn't really what I wanted. Instead I want the replaced text to end up in
the same case as that of the text being replaced:

    public void setStringProperty(String value) {
        String oldValue = this.stringProperty;
        this.stringProperty = value;
        support.firePropertyChange("stringProperty", oldValue, value);
    }

This makes it so much easier to search and replace text as you don't have to
worry about the case. Emacs has been doing this for years.