display questions in unit-v

-function for getting questions from database
-two database files created for Ask/questions (questions.sql,
answers.sql)
display answers in unit-v

-created function for showing answer
-still missing submit button and functions for add question/answer
some minor changes
some changes

-need to get edit
add_question function created and works

-login to show the question and answer (?)
-still need to check for user log in before they can ask question
-still need to implement function for add_answers
Ask questions done

-login require for view / ask question
-can display all questions
-can display all answers
before merge
fix units
fix units_m
fix unit-v
Merge pull request #6 from m-mmoocs/Ask/question

Ask/question pull request - 2nd attempt