Added pynum2word and subjects app

created the subjects app  models, views and html file.
the html file displays the subjects on navbar dynamically
and the page heading too.
Added a pynum2word lib to convert numbers to words in template
Also some zigzag line images were added for footer
Made the subjects app

Added models, views and admin page for subjects
Added subjects app to settings.py
Modified urls.py to accomodate subjects page
Dynamic display of chapters& resources in subjects

shows the chapters and resources from the db.
Edited the subject.html
Removed useless swap files

removed swap files of urls.py , subjects/views.py  ,  templates/subject.html
Removed Pynum2Word from repo coz it wasnt needed
Merge branch 'subjects'

Conflicts:
	iLearning4.db
	settings.pyc
	templates/de.html
	urls.pyc
	views.pyc