3.3.1-p7: Update image id, digest & png [ci skip]

Author: elgalubot

CHANGELOG.md

@@ -7,29 +7,29 @@ Note image ids also change after scm-source.json has being updated which trigger
 ###### To get container versions
     docker exec grid versions
 
-## TBD_DOCKER_TAG
- + **Changes:** https://github.com/elgalu/docker-selenium/compare/113d70a33933ea54168f85c2f5...TBD_CUR_COMM (TBD_DATE)
+## 3.3.1-p7
+ + **Changes:** https://github.com/elgalu/docker-selenium/compare/113d70a33933ea54168f85c2f5...TBD_CUR_COMM (2017-05-04)
     + Upgrade Chrome patch to 58.0.3029.96
     + Add warning that Selenium 2 support will be deprecated
  + **Image tag details:**
-    + Selenium version: TBD_SELENIUM_3_VERSION (TBD_SELENIUM_3_REVISION)
-    + Chrome stable:  TBD_CHROME_STABLE
-    + Firefox stable: TBD_FIREFOX_FOR_SEL3
-    + Geckodriver: TBD_GECKO_DRIVER
-    + Chromedriver: TBD_CHROME_DRIVER (TBD_CHROMEDRIVER_COMMIT)
-    + Java: TBD_JAVA_VENDOR Java TBD_JAVA_BUILD
-    + Timezone: TBD_TIME_ZONE
-    + FROM ubuntu:UBUNTU_FLAVOR-UBUNTU_DATE
-    + Python: TBD_PYTHON_VERSION
+    + Selenium version: 3.3.1 (5234b32)
+    + Chrome stable:  58.0.3029.96
+    + Firefox stable: 52.0.2
+    + Geckodriver: 0.15.0
+    + Chromedriver: 2.29.461571 (8a88bbe0775e2a23afda0ceaf2ef7ee74e822cc5)
+    + Java: OpenJDK Java 1.8.0_121-8u121-b13-0ubuntu1.16.04.2-b13
+    + Timezone: Europe/Berlin
+    + FROM ubuntu:xenial-20170410
+    + Python: 2.7.12
     + Tested on kernel dev host: 4.4.0-77-generic x86_64
-    + Tested on kernel CI  host: TBD_HOST_UNAME
+    + Tested on kernel CI  host: 4.4.0-51-generic x86_64
     + Built at dev host with: Docker version 17.04.0-ce, build 4845c56
-    + Built at CI  host with: Docker version TBD_DOCKER_VERS, build TBD_DOCKER_BUILD
+    + Built at CI  host with: Docker version 17.04.0, build 4845c56
     + Built at dev host with: Docker Compose version 1.13.0, build 1719ceb
-    + Built at CI  host with: Docker Compose version TBD_DOCKER_COMPOSE_VERS, build TBD_DOCKER_COMPOSE_BUILD
-    + Image size: TBD_IMAGE_SIZE
-    + Digest: TBD_DIGEST
-    + Image ID: TBD_IMAGE_ID
+    + Built at CI  host with: Docker Compose version 1.11.2, build dfed245
+    + Image size: 1.29GB
+    + Digest: sha256:73fb3d7f7637afaa329c6eac3491eb60f4075ba84d4a280d7326302557766682
+    + Image ID: sha256:c6dfcc9f6c6d3ae6de2565a3ba4c38f031240379de3dc5c40e77fd98c6496255
 
 ## 3.3.1-p6
  + **Changes:** https://github.com/elgalu/docker-selenium/compare/c4e8df12781eb031795ea6...113d70a33933ea54168f85c2f5 (2017-04-26)