updateCount property is not incremented when the content has changed

[lferrandis]

Setup:

• gssdp: 3a45f61ee50a1d30574da48f6b2bbbfb9b6574b6
• gupnp: 21fccb67689e717828c2fba44aa72d63d2321cd0
• gupnp-av: bcb1e53b5239e77cd2333f3ab471cdb95bfc4584
• gupnp-dlna: fed5da3d1b79a2775e0d7ebaa8b03c4f349ee0dd
• media-service-upnp: 7a0b804f6c3573c774262a39b0d4e9a9fecd0b0b
• Rygel 0.17.7.37-8f125b: 8f125bedbfb444e59db81fac76fd400bb13c20b1

Pre-conditions:

• Launch: Rygel, Media Service UPnP, Gimp, media console
• Rygel (DMS) shares one jpg (I used 62.jpg 480x480 px)

Steps:

1 . In media console, print properties of the jpg
2 . Open the jpeg with Gimp, modify the resolution (Right clic, Image->Scale Image) and save it (File->Overwrite).
3 . In media console, print again properties of the jpg
Actual result:

1 . Properties indicate: "UpdateCount": 0, "Width": 480
3 . Properties indicate: "UpdateCount": 0, "Width": 470
Expected result:

3 . updateCount property MUST be incremented by one (“1”)

[lferrandis]

For more information, logs, read https://github.com/01org/media-service-upnp/issues/182

[lferrandis]

Issue reported in Rygel's tracking bug system:
https://bugzilla.gnome.org/show_bug.cgi?id=694378

[lferrandis]

To check at next bug crawl