Make change and version bump to OPR5.170623.004

Change-Id: Idf711192ef28eb962694fc32d1846bf73fe6e20d

diff --cc core/build_id.mk
index cbd0a40,cd68ea3..1da7dd2
--- 1/core/build_id.mk
--- 2/core/build_id.mk
+++ b/core/build_id.mk
@@@ -13,9 -13,21 +13,21 @@@
  # See the License for the specific language governing permissions and
  # limitations under the License.
  #
- # BUILD_ID is usually used to specify the branch name
- # (like "MAIN") or a branch name and a release candidate
- # (like "CRB01").  It must be a single word, and is
- # capitalized by convention.
+ # BUILD_ID is of the form NPM1.YYMMDD.nnn
+ #
+ # N - dessert designator
+ # P - vertical, or category of release
+ # M1 - release abbreviation
+ # YY - year
+ # MM - month
+ # DD - day
+ # nnn - the patch sequence, starting at 001 for the initial snap
+ #
+ # OPAT.161221.002
+ #
+ # See also:
+ #
+ # https://docs.google.com/document/d/17eqVTxMc2do05T6qwt4eASVyxy8u3Cme4u4fVD5q0VM/view#
+ #
  
- export BUILD_ID=OPR5.170623.003
 -export BUILD_ID=OPR6.170623.014
++export BUILD_ID=OPR5.170623.004