more tooltips

#### explanation

added tooltips for links (reply, quote reply, conversation, remove, and reactions)
ajdusted positions of links

![more-tooltips](https://f.cloud.github.com/assets/2914192/1517215/f36507e6-4b1f-11e3-8235-1b0ff54ebf38.png)
displaying tooltips forcely for screen shot

#### appendix
powered by simptip https://github.com/arashmanteghi/simptip/
customized simptip style