Install local composer and drush update

2. increase ram if needed
3. Locally, create a directory and download composer
4. Run locally php composer.phar require drush/drush:8.x
5. do the same on the remote server, in directory above public_html
upload the composer.json and composer.lock files from the local directory in the remote directory
5. Run remotely php composer.phar install
6. Run remotely ../vendor/drush/drush/drush status, cr, ups, up drupal
7. Run updates.php

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