Update to drush 9

Update drush:  8.1.17 - 8.2.3

asc_bootstrap - replacing 'now' value on events filter and displaying…

asc_bootstrap - adding padding to search box, setting up col 1 to wor…

asc_bootstrap - fixing sidebar menu height bug

asc_bootstrap - updating news story title margins, adding list of sel…

asc_bootstrap - updating news story title margins, adding list of selected people terms 3 to bottom of user bio page

Canini

modules - google tag manager module: allows non-technical stakeholder…

modules - google tag manager module: allows non-technical stakeholders to manage the analytics for their website by triggering the insertion of tags and tracking systems onto their page(s) via Google's Tag Manager (GTM) hosted application.
Also adding -- zaporylie/composer-drupal-optimizations: Make composer operations with Drupal way faster and easier on RAM

asc_bootstrap - newsletter styles, fixing zindex bug on sidebar menu

Canini

Set taxonomy term filter labels to the taxonomy name

asc_bootstrap - fixing slider width for mobile view on basic pages

Update views_bulk_operations:  2.4 --> 2.5

Image Link Patch

asc_bootstrap - patch for entity embed to add link around img but not give option to open in new window

adding patch file for entity embed based on "2511404": "https://www.drupal.org/files/issues/2018-09-17/entity-embed-link-2511404-68.patch" with the exception of the new window checkbox which has been removed from the patch code

SECURITY update, core:  8.6.15  -->  8.6.16

asc_bootstrap - setting slider max-height

Change deploy scripts to use terminus to list target sites, rather th…

Add pantheon_advanced_page_cache module