move code into encfs namespace, split protobufs

git-svn-id: http://encfs.googlecode.com/svn/trunk@93 db9cf616-1c43-0410-9cb8-a902689de0d6

cipher/openssl.cpp

@@ -31,6 +31,8 @@
 #include <openssl/engine.h>
 #endif
 
+namespace encfs {
+
 unsigned long pthreads_thread_id()
 {
   return (unsigned long)pthread_self();
@@ -107,3 +109,4 @@ void openssl_shutdown(bool threaded)
     pthreads_locking_cleanup();
 }
 
+}  // namespace encfs