Fix up missing WITHOUT_DOCS, WITHOUT_CLIENT options

--- CMakeLists.txt.orig	2016-03-24 09:12:10 UTC
+++ CMakeLists.txt
@@ -460,6 +460,7 @@ ADD_CUSTOM_TARGET(INFO_BIN ALL
   WORKING_DIRECTORY ${CMAKE_BINARY_DIR}
 )
 
+IF(FALSE)
 INSTALL_DOCUMENTATION(README CREDITS COPYING COPYING.LESSER COPYING.thirdparty
                       EXCEPTIONS-CLIENT COMPONENT Readme)
 # MDEV-6526 these files are not installed anymore
@@ -470,6 +471,7 @@ IF(UNIX)
   INSTALL_DOCUMENTATION(Docs/INSTALL-BINARY COMPONENT Readme)
   INSTALL_DOCUMENTATION(Docs/INSTALL-BINARY Docs/README-wsrep COMPONENT Readme)
 ENDIF()
+ENDIF()
 
 INCLUDE(CPack)