New Search Form page included and related changes

models.py -> refactored.
Index.html -> New button included in the Index Nav to access the Form
page.
urls.py -> search-form/ url included to access the search-form view.
views.py -> Form view included (serach_form(request))
search_form.html -> New form html page.
Formatted Search button included

views.py - New search view included which send to search_results.html.
urls.py - new urls included.
search_form.html -> Buttons included.
search_results.html -> New template to show results.
Profile page added

urls, view and template done.
detail.html -> forward slash included for url coherence.
AppName changed from courses to qubalapp
Test, Admin and Model updated

admin.py -> New fields added.
models.py -> Course Model has been changed, 'date' removed and
'starting_date' and 'ending_date' included.
tests.py -> long_course function test from the Course model has been
included.
Conceptual Entity_Relationship

QubalApp DB model 0.1
"date" bug fixed

index.html -> the attribute "date" has been updated to "starting_date"
as the model has been updated.
views.py -> Same as index.html
Merge pull request #4 from radicalgraphics/tutorial-4-2

Tutorial 4 2