Weekly Report of Emre Kılıç covering the week of October 13-19

Work Done	Related Reference
Attended to Lab 4 meeting and discussed about the milestone presentation	Lab 4
Implemented the challenge page in mobile	#469
Solved the problem on leaderboard statistics	#484
Added i18n translation to the challenge page of the mobile application	#474
Reviewed and contributed to the delete account page	commit
Reviewed pull requests from my teammates	#427, #483, #497
Requested and reviewed an important security change from the backend	#485