31000.0.0

• Updated for mattermost-api version 31000.0.0
• Updated genPostType to genType to match upstream type change
• Updated postPropAttachment generator
• Remove -Werror for Hackage uploads

30802.1.0

• Switched from Arbitrary instances to Gen x functions.
• Removed dependency on quickcheck-instances
• Updated for mattermost-api version 30802.1.0

30802.0.0

• Updated for mattermost-api version 30802.0.0

30701.1.0

• First version.