0.6.3.3

Lots of minor bugs fixed:
first name on graded lesson should be only the string up to the first
space in the first name field.- DONE

first save should confirm - DONE

Gender field should be a dropdown - DONE

grading form answer box should be larger - DONE

'wrong answers' checkbox should be checked by default - DONE

Teacher and Contact should be verified after pressing the Grade Lesson
button befoe the form is displayed to choose a lesson.  No Teacher, No
Contact, No Grading!

string substitution on comments should happen on the Comments form -
DONE

Comments button should be disabled until Score has been computed, so
that the number of missed questions will be available to the Comments
form for string substitution - DONE

rearrange Failed and Incomplete to beginning of list of comments - DONE

lines after Yes, No, and Unknown on Intro and BWS grading sheets - DONE