Gitcoin v.1.18.0

Changelog

20190529master (29/05/2019)

• [closed] fix share bounty from email
• [closed] fix vips repo #4512
• [closed] Sorts user directory by previously worked and leaderboard #4475
• [closed] Check for auth on posting job profile data #4429
• [closed] Validate uploaded file type and size #4479
• [closed] Fix/data changes for user endpoints #4477
• [3][Gitcoin Grants] grant: cleanup + wsyiwyg editor #4510
• [closed] Suggest top contributors to invite to new bounty #4478
• [closed] Invite user to work on another bounty during payout #4494
• [closed] #4484 - remove waffle.io references #4487
• [closed] Fix stylelint pseudo class #4476
• [closed] fix cors #4467
• [closed] Fix call before initialization #4466