Added SFTP support in wotaskd, in preparation of a Jenkins plugin

The SFTP server will run on port 6022. Only password authentication will work, you need to provide the password of your wotaskd installation.
Adding shell support so that we can do things like symbolic links
Merge branch 'integration' into wotaskd_ftp
Adding the TCP port number for wotaskds built-in SSH server as a property
Allowing empty passwords is a bad idea. If you wish to use the built-in SSH server, set a password for wotaskd
Merge branch 'integration' into wotaskd_ftp
reintegrate refuseNewSession-Flag (from WebObjects 4.x-version)
WOAdaptor: logflag as new optional parameter
WOAdaptor improved error handling and log output when reading a line thats too long (meaning a http header is exceeding 10240 chars)
WOAdaptor: if char is 8 bit, leave out the test on >= 0x100
WOAdaptor: add. debug output
WOAdaptor: improved Win32 version for sending requests to instances
WOAdaptor: forward host header to instances
WOAdaptor: improved streaming (even for IIS and for unset content-length, what you might need for stuff like zip files constructed on the fly)
WOAdaptor remove creepy characters from src
fix compilation for windows
do not forward cert headers from apache
fix indentation
Compile for Win 64Bit by using MinGW64
fix MinGW64 config