Finish new listviewtooltip dialog

[kaa-ching]

it needs more polish: put background images to make it look like a text balloon

it also should show clearly that you want to push on an object, not drag it.
Or, we should enable drag&drop - which is complex code to add.

[kaa-ching]

After I've done some work redesigning the dialog's ui code, I'm moderately happy with the changes:

• background has image
• all text is visible
• image is set to the right size

But I'm not really happy:

• total dialog is not correctly scaled (reduction, usually)
• the close button still needs different icon.
• the background is too transparent, reducing readability.

[glixx]

Fix cutted description for BowlingPin:

diff -ur tbe-0.9-git0de2b0f.orig/src/model/PolyObject.cpp tbe-0.9-git0de2b0f/src/model/PolyObject.cpp
--- tbe-0.9-git0de2b0f.orig/src/model/PolyObject.cpp    2015-08-20 18:49:20.000000000 +0300
+++ tbe-0.9-git0de2b0f/src/model/PolyObject.cpp 2015-08-20 23:17:50.000000000 +0300
@@ -46,7 +46,7 @@
    "BowlingPin",
    QT_TRANSLATE_NOOP("AbstractPolyObjectFactory", "Bowling Pin"),
    QT_TRANSLATE_NOOP("AbstractPolyObjectFactory", "Bowling pins are meant to be run "
-               "over - and most people prefer to do that using "
+               "over -\nand most people prefer to do that using "
                "a Bowling Ball."),
    "BowlingPin",
    "(0.02,0.17)=(-0.02,0.17)=(-0.045,0.14)=(-0.04,0.065)=(0.0,0.04)"

[glixx]

Pictures does not fit in window.

[kaa-ching]

The last commit fixes all for me :-)