[net] add initial support for reopening logfile
Merge pull request #55 from Chilledheart/reopen_log_file

[net] add initial support for reopening logfile
[net] Add role for user

  - fix a issue with search_emailusers
  - fix bad memory usage
  - add id column for mysql
  - returning role string is not NULL string now
Fix daemon mode in multiple programs under OSX

  - ccnet-server
  - ccnet
Merge pull request #57 from Chilledheart/daemonize_under_osx

Fix daemon mode in multiple programs under OSX
[net] fix utf-16 issue under win32
Merge pull request #60 from Chilledheart/patch-1

[net] fix utf-16 issue under win32
Merge pull request #49 from Chilledheart/usermgr_add_role

 [net] Add role for user
[server] fix mysql multiple id in get_emailusers
Merge pull request #62 from Chilledheart/patch-2

[server] fix mysql multiple id in get_emailusers
Fix SQL bug in get_superusers.
Check openssl in configure.ac
Remove code with copyright problems.
listen on unix socket for local connection
Improve unix socket related code.