[#73278620] session filters on inventory section

Squashed commit of the following:

commit 2386882974edc9245612de62bf2ee86c8c6bb3d7
Author: Franco Sellitto <franco.sellitto@zhdk.ch>
Date:   Mon Jul 7 08:02:56 2014 +0200

    fixing responsible selector for session params (render directly through ruby template)

commit 76c18b6c77920bd38e6d4a15d49341406f6aecb6
Author: Franco Sellitto <franco.sellitto@zhdk.ch>
Date:   Thu Jul 3 16:49:59 2014 +0200

    Revert "restore responsible experiment"

    This reverts commit fa9ba28408a42c036fe2cbb103b988779974beaa.

commit fa9ba28408a42c036fe2cbb103b988779974beaa
Author: Matus Kmit <matus.kmit@zhdk.ch>
Date:   Thu Jul 3 15:52:14 2014 +0200

    restore responsible experiment

commit cd7e9b26dbe3a6569a2573dee4406c0efab4be32
Author: Franco Sellitto <franco.sellitto@zhdk.ch>
Date:   Thu Jul 3 15:32:30 2014 +0200

    reset filters on direct link

commit 824f240cadebf8cca7ea0a5aec1da70b153def1f
Author: Franco Sellitto <franco.sellitto@zhdk.ch>
Date:   Thu Jul 3 13:52:52 2014 +0200

    inventory session params (TODO fix responsible_id selector)

commit 22b6a3ca4f9272554e7f488141b3a0108b601a70
Author: Matus Kmit <matus.kmit@zhdk.ch>
Date:   Thu Jul 3 12:59:03 2014 +0200

    restore inventory according to active tab
Merge branch 'upcoming'
[#74579208] iOS als Betriebssystem hinzufügen
[#74579208] Betriebssystem iOS hinzufügen mit @current