Changes

* The last [[Hackathon|#Hackathon]] was on [[27_October_20186_April_2019|October 27April 6]].* [[ThemeMonday|#ThemeMonday]] took place on December 10th. The theme was {{#ifexpr: {{#time: z|second Monday of {{#time: Y-m|this month}}}} < {{#time: z}}| [[{{#time: j_F_Y|second Monday of {{#time: Y-m|this month}}}}|{{#time: F j|second Monday of {{#time: Y-m|this month}}}}]]| [[https{{#time: j_F_Y|second Monday of {{#time: Y-m|last month}}}}|{{#time://pnut.io/tags/UpsideDownMonday F j|second Monday of {{#UpsideDownMondaytime: Y-m|last month}}}}]]}}.