Update XQLint dependency

fixes #2108
add menuitem to the list of void tags
workaround for inaccurate font rendering on chrome 37
Merge pull request #2159 from ajaxorg/misc

Fix several small issues
Merge pull request #2111 from wcandillon/patch-3

Update XQLint dependency
fix regression in ace_popup
update build submodule
Merge remote-tracking branch 'upstream/master'
Added snippets for str agent.