Problems with wiki pages in Hueman theme

Hi,

I'm having following problems with wiki plugin working on hueman theme.

1. Remove floating social links. http://bit.ly/1Rd0LCO

2. Discussion comments are being displayed at bottom. http://bit.ly/1dFAmeB

3. Problem with history tab. http://bit.ly/1KGwua7

4. Remove "Tags:" word displayed at the bottom of every wiki page. http://bit.ly/1LQhng4

How to resolve these?