boot2docker 0.8.0

Closes #28270.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
ejabberd: bump revision for OpenSSL security.
elinks: bump revision for OpenSSL security.
libssh: bump revision for OpenSSL security.
mongodb: bump revision for OpenSSL security.
mosquitto: bump revision for OpenSSL security.
mutt: bump revision for OpenSSL security.
python: bump revision for OpenSSL security.
python3: bump revision for OpenSSL security.
wget: bump revision for OpenSSL security.
mosquitto: update 1.3.1 bottle.
libssh2: update 1.4.3 bottle.
python: update 2.7.6 bottle.
elinks: update 0.11.7 bottle.
mutt: update 1.5.23 bottle.
python3: update 3.4.0 bottle.
ejabberd: update 13.12 bottle.
wget: update 1.15 bottle.
mongodb: update 2.6.0 bottle.

Closes #28271.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
nginx: bump revision for OpenSSL security.