Squashed commit of the following:

commit 275a889489b08245359ecc8bbe2cd984ec58bcde
Author: Shahar <shahard@arava-ect.com>
Date:   Tue Dec 23 15:58:28 2014 +0200

    Fix marker tooltip

    Show tooltip by hover above marker

commit 038d54bda021f8cadce763b369fd85529f213e2c
Author: Shahar <shahard@arava-ect.com>
Date:   Tue Dec 23 14:36:39 2014 +0200

    Undo deployment fix for images

commit 1f3da6a24415eb7d548db6fc2d782f9f9c44a86b
Author: Shahar <shahard@arava-ect.com>
Date:   Mon Dec 22 17:02:13 2014 +0200

    Minor UI fixex

    Set electricity chart legend to hebrew
    Set chart title
    CSS fixes for messages
    WIP: Tooltip for messages
    WIP: Tolltip for meters

    Also: deployment fix - use Config.basePath for images