Update docker-library images

- `memcached`: 1.4.36
- `postgres`: add `POSTGRES_INITDB_XLOGDIR` variable for `--xlogdir` during `initdb` (docker-library/postgres#224)
- `pypy`: 5.7.0

library/memcached

@@ -4,10 +4,10 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
              Joseph Ferguson <[email protected]> (@yosifkit)
 GitRepo: https://github.com/docker-library/memcached.git
 
-Tags: 1.4.35, 1.4, 1, latest
-GitCommit: 0c32d28898ba19637ab990b3c092b9e178dfade0
+Tags: 1.4.36, 1.4, 1, latest
+GitCommit: 3f8f0356ad0a9ab23ae0ad8410540f7343ae8fb1
 Directory: debian
 
-Tags: 1.4.35-alpine, 1.4-alpine, 1-alpine, alpine
-GitCommit: 0c32d28898ba19637ab990b3c092b9e178dfade0
+Tags: 1.4.36-alpine, 1.4-alpine, 1-alpine, alpine
+GitCommit: 3f8f0356ad0a9ab23ae0ad8410540f7343ae8fb1
 Directory: alpine

library/postgres

@@ -5,41 +5,41 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
 GitRepo: https://github.com/docker-library/postgres.git
 
 Tags: 9.6.2, 9.6, 9, latest
-GitCommit: 5159417968c6a08e2ed784498cba28f22a74b03e
+GitCommit: 913bc48bfdccab58c6c15f11841da5146e7bf968
 Directory: 9.6
 
 Tags: 9.6.2-alpine, 9.6-alpine, 9-alpine, alpine
-GitCommit: 439c4976afbc9cb8c1fbc9c9783c84f62856a3c4
+GitCommit: 123aedc09bc067740fb28921c500ded83c018bd4
 Directory: 9.6/alpine
 
 Tags: 9.5.6, 9.5
-GitCommit: a869eeccfb98c9653fca9f135f3bafa758c6f4f7
+GitCommit: 913bc48bfdccab58c6c15f11841da5146e7bf968
 Directory: 9.5
 
 Tags: 9.5.6-alpine, 9.5-alpine
-GitCommit: 439c4976afbc9cb8c1fbc9c9783c84f62856a3c4
+GitCommit: 123aedc09bc067740fb28921c500ded83c018bd4
 Directory: 9.5/alpine
 
 Tags: 9.4.11, 9.4
-GitCommit: 1e7af691a3981ec1c86d23d585dcebd9154d1cd0
+GitCommit: 913bc48bfdccab58c6c15f11841da5146e7bf968
 Directory: 9.4
 
 Tags: 9.4.11-alpine, 9.4-alpine
-GitCommit: 439c4976afbc9cb8c1fbc9c9783c84f62856a3c4
+GitCommit: 123aedc09bc067740fb28921c500ded83c018bd4
 Directory: 9.4/alpine
 
 Tags: 9.3.16, 9.3
-GitCommit: 6870d3db740a321699ef49c8068c3d812b9681e1
+GitCommit: 913bc48bfdccab58c6c15f11841da5146e7bf968
 Directory: 9.3
 
 Tags: 9.3.16-alpine, 9.3-alpine
-GitCommit: 439c4976afbc9cb8c1fbc9c9783c84f62856a3c4
+GitCommit: 123aedc09bc067740fb28921c500ded83c018bd4
 Directory: 9.3/alpine
 
 Tags: 9.2.20, 9.2
-GitCommit: 8c03e6aed7046c4bacbc1b7c356edd81bd72c6d5
+GitCommit: 913bc48bfdccab58c6c15f11841da5146e7bf968
 Directory: 9.2
 
 Tags: 9.2.20-alpine, 9.2-alpine
-GitCommit: 439c4976afbc9cb8c1fbc9c9783c84f62856a3c4
+GitCommit: 123aedc09bc067740fb28921c500ded83c018bd4
 Directory: 9.2/alpine

library/pypy

@@ -4,15 +4,15 @@ Maintainers: Tianon Gravi <[email protected]> (@tianon),
              Joseph Ferguson <[email protected]> (@yosifkit)
 GitRepo: https://github.com/docker-library/pypy.git
 
-Tags: 2-5.6.0, 2-5.6, 2-5, 2
-GitCommit: 491b6dc82d4275a452d48b800ee7a91e48ef9991
+Tags: 2-5.7.0, 2-5.7, 2-5, 2
+GitCommit: ca2e765c5093389cf9b805fc959d43645a502a77
 Directory: 2
 
-Tags: 2-5.6.0-slim, 2-5.6-slim, 2-5-slim, 2-slim
-GitCommit: 491b6dc82d4275a452d48b800ee7a91e48ef9991
+Tags: 2-5.7.0-slim, 2-5.7-slim, 2-5-slim, 2-slim
+GitCommit: ca2e765c5093389cf9b805fc959d43645a502a77
 Directory: 2/slim
 
-Tags: 2-5.6.0-onbuild, 2-5.6-onbuild, 2-5-onbuild, 2-onbuild
+Tags: 2-5.7.0-onbuild, 2-5.7-onbuild, 2-5-onbuild, 2-onbuild
 GitCommit: b48e8489ab794a2bacfd396c2f8e1a5b06d6ae48
 Directory: 2/onbuild