Changelog

20190417master-4 (17/04/2019)

[in progress] sitemap: update bounties/contibutor #4183
[in progress] Hackathon add sponsor logos #4185
[closed] Issue #4204 - Homepage video preview blocks #4205
[closed] Fix pagination and order by in hackathon #4206
[closed] hackathon day of updates #4201
[closed] Alert user if insufficient tokens for tip #3058
[closed] 041219newsletter #4193
[closed] check if latest_comment_url is valid when processing gh notifications #4136
[closed] remove context in leaderboard #4182
[closed] Users list #4011
[in progress] Hackathon filter #4145
[closed] dont check for sufficient funds on tips with ETH #4215
[closed] remove condition and fix template #4219