Merge branch 'master' of git://valera-ext.nynaeve.net/silc into silc.1.1.branch

Code cleanup during merge.

Reverted External IP commit

Reverted changes to silcsocketstream API.  The user context can be now
set to SilcClientConnectionParams.  Increased shared library revision to
avoid backwards incompatiblity.

Signed-off-by: Pekka Riikonen <priikone@silcnet.org>