Authenticated User should be able to generate reports(tabular + visual)
    1)  By timeline weekly, monthly and yearly donation - By yearly - Done
     2) By received by user with timeline - Done
     3) By donation type - Done

User should be able to export reports in PDF - By received by user and By donation type - Done

WIP :- User should be able to export reports in PDF - By yearly
#25 Export PDF issue resolved
Merge branch 'development' into development_feature_25

Conflicts:
	Gemfile
	Gemfile.lock
	app/controllers/donations_controller.rb
	app/models/donation.rb
	app/views/donations/_form.html.haml
	app/views/donations/index.html.haml
	db/schema.rb
#25 resolved issues after testing