Added ooo-draw.svg, ooo-impress.svg and symlinks. Added libreoffice-base symlink
Added multimedia-video-player.svg from upstream
Fix system-software-update.svg in apps/128 (from upstream)
Added preferences-desktop.svg symlinks in apps/128, categories/32, 64 and 128.
Merge pull request #3 from sergiobenrocha2/apps

More Apps icons, missing symlinks and merge upstream icons