The openocd-0.7.0-rc1 release candidate.

Change-Id: I2992c31b56b88062cdd8a8208506a61f6367fcbf
Signed-off-by: Freddie Chopin <freddie.chopin@gmail.com>

configure.ac

 AC_PREREQ(2.60)
-AC_INIT([openocd], [0.7.0-dev],
+AC_INIT([openocd], [0.7.0-rc1],
   [OpenOCD Mailing List <openocd-devel@lists.sourceforge.net>])
 AC_CONFIG_SRCDIR([src/openocd.c])