Bump warden

The number of commits in this bump is relatively high because a large
topic branch (wsh for "warden shell") was merged to master.

$ git shortlog 2c3af4e3..81640af1
Kowshik Prakasam (12):
      Create work path before specs start.
      Resource limits for run and spawn commands.
      Plumb resource limits from warden server to wsh.
      Specify optional handle when creating a container.
      Introduce container id.
      Custom handle for create command.
      Fix command quotes in Repl v2.
      Refactor for better readability.
      Fix bug in special casing run command.
      Return list of alive job ids in info response.
      Populate info response with list of alive job ids.
      Don't special case iomux-link exit status.

Pieter Noordhuis (74):
      First stab at warden shell
      Extract client_loop from client_accept
      Use CLOEXEC on pipes
      Dynamically allocate buffer space
      Enhance pump code
      Move hooks
      Change to right directory
      Remove unnecessary interpolation syntax
      Assert number of fds to receive
      Use extra fd for exit status
      Configure network interfaces from hooks
      Force link creation
      Update start/stop to use warden shell
      Mount /proc from hook
      Remove SSH related setup code
      Remove overrides now that upstart is no longer used
      Trim down setup.sh
      Move common.sh to lib/
      Change mount paths; include config from common.sh
      Ignore wshc and wshd
      Select for reads, block for writes
      Forward return value
      Skip fd extraction on EOF
      Skip fd extraction when pointer is not specified
      Add copy in case splice cannot be used
      Support interactive terminals
      Define buffer size in msg.h
      Fix number of fds to send to client
      Specify environment on exec
      Extract fork to separate function
      Forward argv to wshd
      Forward resource limits to wshd
      Remove unused files
      Rename wshc -> wsh
      Configurable process title for wshd
      Add run directory to skeleton
      Remove no longer required code from setup.sh
      Add option parsing to wsh to discard rsh options
      Update destroy script
      Fix fcntl error (F_SETFD vs F_SETFL)
      Set FD_CLOEXEC on client connection
      Undefine macro that is only used once
      Loop waitpid in wshd
      Forward user from RSH compatibility mode to wshd
      Add route for default gateway from hook
      Make stop script graceful again
      Fix regexp for matching tc output
      Modify server code to use wsh
      Remove the RLIMIT_RTTIME resource limit
      Copy wshd and wsh from setup task
      Break from waitpid loop when it -1 or 0
      Use -l flag to su to chdir to HOME
      Loop to write entire buffer
      Merge branch 'master' into wsh2
      Use /tmp/warden/spec as working directory for specs
      Use small buffer on stack instead of heap
      Change temporary directory used in container code
      Change user via wsh/wshd
      Fix setup task
      Use perror
      Setup rudimentary environment from wshd
      Pass logger to deferred child to preserve handle
      Use external utility to close non-default fds
      Update em-posix-spawn
      Merge branch 'master' into wsh2
      Update dependencies
      Combine resource limits in configuration and requests
      Remove unused code
      Close in/out/err in wshd when entering accept loop
      Merge remote-tracking branch 'origin/wsh2' into wsh2
      Merge branch 'wsh2'
      RLIMIT_AS must be specified in bytes
      Configure write side of pump pair to be blocking
      Merge "Configure write side of pump pair to be blocking"

Change-Id: I93ab6debdf6bb3259801f49639d2540d6b6927a6
Bump dea_next

$ git shortlog dd143450..459dc668
Anfernee Gui (2):
      Generate private id for running instance
      Merge "Generate private id for running instance"

Pieter Noordhuis (4):
      Update warden dependencies
      Update steno dependency
      Pass resource limits directly to warden
      Merge branch 'master' into ccng-integration

Change-Id: I68d9dac6df5968cde5ba439debb3a4a75b02c75b
Bump warden

$ git shortlog ac437724..b5ab5fc2
Bob Nugmanov (2):
      Whitelist safe devices
      Merge "Whitelist safe devices"

Pieter Noordhuis (3):
      Remove dependency on vcap-common
      Update eventmachine to 1.0.0
      Whitelist ptty related devices

Yang Yang (1):
      make setquota optional

Change-Id: I5011246eb36ac76957b78a500f75140b6a4ffe4a