bugfix: after mkdir() cd() was called with directory name with missing '_', this resulted in placing certificate and private key files in .pica-client dir instead of account subdirectories

git-svn-id: svn://localhost/project_picapica/trunk@297 fb96df88-216d-11de-830c-f3023f12d8ac
set only defined addrinfo flags, for portability

git-svn-id: svn://localhost/project_picapica/trunk@298 fb96df88-216d-11de-830c-f3023f12d8ac