proofreading school-software/programming and school-software/trainingsoft
kde-edu: removed kverbos / removed "1" from KWordQuiz
kopete: updated list of supported protocols
sumode: "lilo" command replaced by "shutdown"
school-software/trainingsoft/teacher: typo: iTalk -> iTalc
install-guide/sysconfig.txt: paraphrase
desktop-software/file-manager/dolphin updated
added initial Chromium description

based on http://ru.wikipedia.org/wiki/Chromium
desktop-software/internet/web/firefox: updated windows name
desktop-xfce: update / typo fixes
desktop-software/internet/im/pidgin: updated list of supported protocols
desktop-software/internet/mail/thunderbird: updated menu
system-management/acc/gui/acc-xfce.txt: main menu is renamed
desktop-software/graphics/gimp: little cleanup
desktop-software/multimedia/audacity: updated menu
docs.spec: version 5.0 -> 6.0
install-guide/backup-before-install.txt: remove outdated floppy mention
install-guide: screenshots updated to 6.9.0-20130122
switch to 7.0 version
support/index.txt: add more Community/Company links