required underscore in prepare_www hook
Merge branch 'master' of gitlab.com:bch-mobile/ui5-cdv-hooks
added hook for copying BCH lib files $BCH_UI5_HOME env variable required (very similar to ui5 copy libs script)
logging and error handling updates
new hooks for version updates
update version hooks
Merge branch 'copy-bch-libs'

Conflicts:
	before_prepare/01_prepare_www.js