Added option for download  previous year question paper, sorted answersheet according to subtopic, make changes in tips and trick page
(free page) and also in student performance
Added option for download  previous year question paper, sorted answersheet according to subtopic, make changes in tips and trick page
(free page) and also in student performance
Merge branch 'master' of https://github.com/redrosevishnu/pscexams

Conflicts:
	pscexams/settings.pyc
	pscexams/student/views.py
	pscexams/views.pyc
Merge pull request #22 from gopikamohanv/master

Student app updations