render pages with mathjax in IE9 compatability mode
Revert "render pages with mathjax in IE9 compatability mode"

This reverts commit c57226f67d0816d2ead080af7b3cff3daa0921d4.
mathjax compatibility for IE10 via x-ua-compatible meta tag
Merge branch 'master' of github.com:rstudio/rstudio
don't log path not found errors during code indexing
Merge branch 'master' of github.com:rstudio/rstudio
prevent indexing error in tab before selected handler
prevent js exception when window.focus isn't found
log a warning when a user fails a required group check
Merge branch 'master' of github.com:rstudio/rstudio