Add basic cmake build instructions. Deleted obsolete files: build-howto.html and kdirstat.spec . Change description in README. Signed-off-by: gregory guy <gregory-tde@laposte.net>
git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/kdirstat@1088039 283d02a7-25f6-0310-bc7c-ecb5cbfe19da