Update all documentation for qTip2

The current drush download-qtip command fails because qTip1 is no longer supported. Also, all links to download qTip in the documentation (both on the project page and in the README) are broken. I'm not sure if these are recent things, or if you knew about them already, but I thought I'd note this here incase anyone else runs into this issue.

You can get qTip 2 here: http://qtip2.com/download
Though it's not clear which version to download anymore, or even if qTip2 will continue to work with menu minipanels version 1.1

qTip2 is on github, but it looks like qTip1 releases were not included in the git history;
https://github.com/qTip2/qTip2

*edit*
I found it, qTip1 is also on github:
https://github.com/Craga89/qTip1
Minified versions can be downloaded from here: https://github.com/Craga89/qTip1/tree/master/1.0.0-rc3

*edit again*
Actually, the I couldn't get RC3 working, it was throwing some JavaScript errors that broke everything on the page. I recommend RC2:
https://github.com/Craga89/qTip1/tree/master/1.0.0-rc2