Rename client/client.c to client_full.c

Rename client/client.c to client-full.c and change the Makefile accordingly.
This is a preparation step for introducing a new lightweight client which
should reuse as much code as possible from the old one but it should not depend
on external libraries.

Signed-off-by: Tomas Hlavacek <tmshlvck@gmail.com>

client/Makefile

@@ -1,4 +1,4 @@
-source=client.c commands.c util.c
+source=client_full.c commands.c util.c
 root-rel=../
 dir-name=client