Java browser plugins are depreciated and not supported by
modern browsers anymore.

IE11 is not supported with ExtJS 4, so we have to force the IE
rendering engine to parse the page as an older version.
This fixes the problem of the component tree icons not appearing.
IE11 is supported in ExtJS so this header is not needed in manager5/ (tested OK)

Closes https://bugzilla.proxmox.com/show_bug.cgi?id=645

The variable to use to check the disk type is confid,
as set in line 16 with:
var confid = me.confid || (values.controller + values.deviceid);

Found a double variable declaration that needs to be removed.
Signed-off-by: Alen Grizonic <a.grizonic@proxmox.com>

Signed-off-by: w.link@proxmox.com <Wolfgang Link>

ExtJS5 Neptune default theme use 13px font instead of 12px in
ExtJS4 so we need to make room for it.

'datachanged' event was not reloading the store with ExtJS5,
but 'refresh' does.
According to the API description 'refresh' seems to be what we need:
http://docs.sencha.com/extjs/5.1/5.1.0-apidocs/#!/api/Ext.data.AbstractStore-event-refresh

on ExtJS4, me.model.prototype.fields is a config object
containing all the fields of the model, this object has properties like length, keys
on ExtJS 5, me.model.prototype.fields is an array of config object
that we have to iterate to get the field name

Ext.ModelMgr.create() is non-working in ExtJS5

Signed-off-by: Alexandre Derumier <aderumier@odiso.com>

only for virtio disk (virtio-scsi qemu 2.3 is not thread-safe currently)

improve me: grey-out/hidden the option if !virtio
Signed-off-by: Alexandre Derumier <aderumier@odiso.com>