Merge pull request #529 from petgit/VS2013

Visual Studio 2013 Support

diff --cc src/rrd_client.c
Simple merge

diff --cc src/rrd_create.c
Simple merge

diff --cc src/rrd_graph.c
Simple merge

diff --cc src/rrd_restore.c
Simple merge

diff --cc src/rrd_rpncalc.c
Simple merge

diff --cc src/rrd_update.c
Simple merge