New country map of Scotland by Fòram na Gàidhlig.
fixed colors values in the advanced color activity.

The color names / values was not correct. It may happens that
translators have been confused and that their translation no more
match the implementation.

This page has been created to help track the changes:
http://gcompris.net/wiki/Color_translation
minor manual fix.
minor layout change to accomodate long color names.
minor layout fix in explore_farm_animals activity.
added missing africa in explore_world_music activity

moved america suitcase up a bit.
Updated Slovenian translation
Updated POTFILES.in
fixed explore_world_animals activity.

The main svg image was refering to a non  relative image
and thus was working only on my computer.
minor improvement of strings to translate
removed spaces around = in desktop files

These extra spaces are transfered in the po files but
were not in the code itself.
Removed a hack in explore.py to manage the extra space in translations.
fixes to no more accept space prefix in translation.
fixes spaces prefixed strings that are no more needed.

Since commit 6a4d155425ba0 we no more have strings with a space
prefix.
set a smaller font to accomodate long translations.
Added Scottish Gaelic.
Added list of words for Scottish Gaelic.