Install man pages during 'make install' on Unix systems


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4552 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/unix/CMakeLists.txt b/unix/CMakeLists.txt
index 599f26f..36fe339 100644
--- a/unix/CMakeLists.txt
+++ b/unix/CMakeLists.txt
@@ -6,3 +6,6 @@
 if(NOT BUILD_NEW_VNCVIEWER)
 add_subdirectory(vncviewer)
 endif()
+
+install(PROGRAMS vncserver DESTINATION bin)
+install(FILES vncserver.man DESTINATION man/man1)