Alexey Rogachevskiy 34fc51389f travis: Enable image builds for main branch ...

Squashed commit of the following:

commit c70fc8dd0b
Author: Alexey Rogachevskiy <sfalexrog@gmail.com>
Date:   Thu Jul 9 21:26:47 2020 +0300

    travis: Use proper bucket name

commit d9fc21773b
Author: Alexey Rogachevskiy <sfalexrog@gmail.com>
Date:   Thu Jul 9 21:14:38 2020 +0300

    travis: Use S3 key stored in travis environment

commit 8ef93c928a
Author: Alexey Rogachevskiy <sfalexrog@gmail.com>
Date:   Thu Jul 9 20:02:28 2020 +0300

    travis: Set actual S3 endpoint

commit 848e4b33f7
Author: Alexey Rogachevskiy <sfalexrog@gmail.com>
Date:   Thu Jul 9 18:50:41 2020 +0300

    travis: Try enabling deployments

commit 11196f0c7d
Author: Alexey Rogachevskiy <sfalexrog@gmail.com>
Date:   Thu Jul 9 17:03:44 2020 +0300

    scripts: Allow apt to finish doing initial updates

commit 46064eafe2
Author: Alexey Rogachevskiy <sfalexrog@gmail.com>
Date:   Sun Jul 5 22:16:18 2020 +0300

    ros_ide_vm: Be even more CI-friendly

commit 72f35a0b04
Author: Alexey Rogachevskiy <sfalexrog@gmail.com>
Date:   Sun Jul 5 22:05:57 2020 +0300

    ros_ide_vm: Allocate less resources for build

commit 246ba6e5fb
Author: Alexey Rogachevskiy <sfalexrog@gmail.com>
Date:   Sun Jul 5 22:04:16 2020 +0300

    travis: Download base VM instead of building it

commit 9d2830bfeb
Author: Alexey Rogachevskiy <sfalexrog@gmail.com>
Date:   Sun Jul 5 20:29:26 2020 +0300

    base_vm: Try building in headless mode

commit 31db396477
Author: Alexey Rogachevskiy <sfalexrog@gmail.com>
Date:   Sun Jul 5 18:22:54 2020 +0300

    base_vm: Use simplier hardware config

commit 8709ec5873
Author: Alexey Rogachevskiy <sfalexrog@gmail.com>
Date:   Sun Jul 5 18:05:59 2020 +0300

    build: Download Packer in CI environment (hack)

commit 691cdde431
Author: Alexey Rogachevskiy <sfalexrog@gmail.com>
Date:   Sun Jul 5 17:58:23 2020 +0300

    travis: Bump Virtualbox version

commit e2c6d709db
Author: Alexey Rogachevskiy <sfalexrog@gmail.com>
Date:   Sun Jul 5 17:54:11 2020 +0300

    travis: Try running Packer in CI

2020-07-20 21:52:52 +03:00

..

installSoftware.sh

travis: Enable image builds for main branch

2020-07-20 21:52:52 +03:00