Configure SELinux to allow HTTP network connection

SELinux requires the httpd_can_network_connect boolean to be set to
allow network connections to the HTTP server.

Change-Id: I07c1a9b94af9e986b63aebdeb0644822d6b7ef3e
Closes-Bug: #1272100
Fix repository and dist-upgrade

apt-get doesn't have dist-update command, replace with correct
dist-upgrade. Also fix incorrect repository address.

Change-Id: Id98add7686dbc7ffa4d4e38dab81bb57c8b059f4
Closes-Bug: #1275304
Merge "Fix repository and dist-upgrade"
Merge "Configure SELinux to allow HTTP network connection"