Fix some warnings in MSVC (no more deprecated warnings again), fixed g729 build in msvc broken when the files in the lib moved when it was autotooled.  Add details in readme about msvc requirements when using VC++ express 2005.

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@303 d0543943-73ff-0310-b7d9-9358b9ac24b2