Function: Updates last_active field of qameta.
Function: Insert post meta
Function: Update qameta votes count
Function: Update count of answers in post meta.
Function: Set selected answer for a question
Function: Delete qameta row.
Function: Update views count of qameta.
Function: Default qameta table fields with values.
Function: Clear selected answer from a question.
Function: Append post object with apmeta fields.