-fix builds that don't define USE_SSL


git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-gsoc-2013@10550 ddefafc4-47db-0310-ae44-fa13212b10f2
-fix VS2010 project files for new classes added as part of GSOC project 

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-gsoc-2013@10551 ddefafc4-47db-0310-ae44-fa13212b10f2
-avoid dynamic casts where possible 

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-gsoc-2013@10552 ddefafc4-47db-0310-ae44-fa13212b10f2
resip/stack: create common base class WsBaseTransport for WS and WSS transports

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-gsoc-2013@10553 ddefafc4-47db-0310-ae44-fa13212b10f2
-update VS2010 files with new source just added 

git-svn-id: https://svn.resiprocate.org/rep/resiprocate/branches/b-gsoc-2013@10554 ddefafc4-47db-0310-ae44-fa13212b10f2