DOCTYPE switch, IE8 compatibility
Merge pull request #82 from yojeek/doctypes-and-ie

DOCTYPE switch, IE8 compatibility
append "px" to margin-left value
lowcase html in DOCTYPE
use jquery v1.7.2 from deb7 rep
IE11 compatible

  * msie = /msie|trident/
  * use $IE_COMPAT=10 before include(header.inc.php),
    for AMC ActiveX in online/view.php
    and VLC plugin offline/gallery.php
remove unused third-party/niceforms.js
cron.php typo
enable gallery's memcache
Merge branch 'master' into ptz