Fixed mismatch in ietf-restconf-version variable

- ietf-restconf-version is defined to be 2013.09.04.1-SNAPSHOT while
the module is defined to be 2013.10.19.1-SNAPSHOT. The mismatch causes
issue in the usage as well in the releasing process

Change-Id: Ieee018314370416fc3ba37e0f7f7eb2f1f55c06b
Signed-off-by: Giovanni Meo <gmeo@cisco.com>
Merge "Fixed mismatch in ietf-restconf-version variable"