Release 2.15.1102

Released on Jun 13, 2017 and includes the following:

• AI-1177 FIXED: Character encoding in French email messages is corrupted
• AI-1476 FIXED: Query API returns reporting periods belonging to deleted sites
• AI-1590 FIXED: API column queries failing due to different column lengths
• AI-1602 FIXED: Table view fails to load with Error 500
• AI-1210 Update log in and sign up pages with new website style