Merge common/styles.xml (which contains only the special default style)
with common/common_styles.xml.
Rename common/common_sprites.xml to common/sprites.xml.
This was SVN commit r18637.
Move remains of common/sprite1.xml to common/common_sprites.xml.
Remove duplicates bkFillBlack and bkTranslucent.
Rename bkWhiteBorderBlack to BackgroundWhiteBorderBlack.
Move BackgroundSessionTooltip and BackgroundInformationTooltip to
session/.
Remove unused BackgroundErrorTooltip.
This was SVN commit r18636.
CGUI now represents a single 'page'. CGUIManager maintains multiple
pages and switches between them.
Split the XML files into pregame, loading, session and messagebox pages.
Added hotloading of GUI pages.
Minor GUI cleanups.
(Merge from hg 81862d33780c)
This was SVN commit r7214.