Feature/messages

[friedger]

This PR

• adds an action messagefrom to the pet contract
• adds a new table to postgres messages
• updates filtering/watching for messagefrom
• adds a MessageBoard to the home screen that shows that last 3 messages from any monster.
• adds a button to send a message to the home screen.

Towards #91

[leordev]

Just put this info:

• PetTypeId.png
• "I am so happy to be there."
• Bubble @ October 15th 2018, owned by leordev

(message, pet name, pet type id, created at, current owner)

I will add proper images, cards, and boxes around it! Nice job @friedger

[friedger]

@leordev Now it looks like this

I am not sure whether the time zone is correctly translated. I am using parseZone, is that correct?

[leordev]

Nice @friedger

I will hold it because of #89 - I need to circle with infra to update our fullnode, and I need to update the demux reader version!